How is the position of the fundus of the uterus determined during pregnancy, what is the normal height of its standing by week? How is the height of the uterine fundus measured and what does this indicator mean? How high should the uterus be?

Throughout pregnancy, gynecologists measure standing height and uterine size week by week. This helps them not only determine the duration of pregnancy, but also make a conclusion about its course - whether there are developmental abnormalities in the fetus or whether the development is normal. Therefore, you should not be surprised that your leading doctor pays special attention to this organ during each examination. Remember, he is not worried about himself, but about you and your baby. Are you wondering how your pregnancy is going, but you can’t decipher the numbers? In today’s article we will tell you in detail what the height of the uterine fundus depends on by week, and also introduce you to the table in which the norms are set.

Interesting Facts! Before pregnancy, in women of reproductive age, the uterus has the following dimensions and weight: length - about 8 cm (maybe a little less or more), height - 3.6 - 4 centimeters, cervix - approximately 2.6 cm, weight - 45 -55 g. During pregnancy, the size and height of the uterine fundus changes week by week and by the end of the 3rd trimester at 40 weeks its length reaches 40 cm and weight 3.5-4.1 kg.

Fundal height of the uterus by week, how to determine:

• at the beginning (in the first weeks), the gynecologist can determine its size only through a gynecological examination - through the vagina, palpating it;
• at 11 and VSD of the uterus reaches the pubic symphysis;
• with it it is already possible to palpate through the abdominal wall, because its dimensions already extend beyond the pelvic region;
• A fairly common method for determining height measurements and assessing the fundus of the uterus is measurement using a centimeter tape. The expectant mother is in a supine position, and her leading gynecologist measures the distance from the symphysis pubis to the fundus of the uterus;
• The obtained data is recorded in a log in order to monitor further developments.
• size of the height of the uterine fundus by week (measurements from): 8-9 weeks - about 8-9 centimeters, 10, 11, 12 and - from 10 to 11 cm, at 14- - from 12 to 13 cm, at 16- At 17 weeks - from 14 to 19 cm, at 18, 19, 20 and 21 weeks - from 18 to 24 cm, at 39-40 - from 35 to 40 cm (read more about the values ​​below).
• The VSD (fundal height) of the uterus corresponds to approximately one week of pregnancy.

By the way, if during an examination the gynecologist notices deviations from the norm in a larger direction, this may mean that the patient is carrying twins or triplets. To a lesser extent - a woman experiences oligohydramnios, a transverse or oblique position of the fetus, or slow development of the baby. The height of the uterine fundus must be measured constantly in order to monitor the dynamics of the results.

Important! The given average statistical dimensions of the height of the uterus may not correspond to reality, because Before pregnancy, each woman's uterus has an individual size.

Height of the fundus of the uterus during pregnancy, table and description

The initial measurement begins at 8, when the uterus changes its shape and becomes like a goose egg. It is from this period that it can be felt, because it extends beyond the pelvis and has a new position - just above the pubis. In addition, it is at this time that the corpus luteum begins to disappear gradually, and the placenta begins to work actively. The baby, despite his small size, is already moving, and blood vessels are beginning to form in his body. At 10-13 weeks, the length of the pregnant woman’s uterus reaches approximately 10-11 cm. The body tries to cleanse itself, due to this it increases toxicosis. The height of the uterine fundus at 14-16 weeks already reaches approximately 15 cm. By this period, all organs of the fetus are already formed. The uterus changes its position and is already in the gap - from the pubic part to the navel. At 17-18 weeks, the UMR of the uterus = 19 cm. For this period, the mother has already formed the placenta, and her baby has the immune system, all limbs and the cerebellum. Half term is 20 weeks. The height of the uterine fundus by week corresponds (approximately) to the period of pregnancy of a pregnant woman. The uterus is located 1.5 fingers below the navel. The weight of the fetus at 22-24 weeks is 550-610 grams. His lungs begin their formation, and his muscles and bones begin to develop. The size of the uterus reaches 23 cm. The height of the uterine fundus at week 28 = 28 cm. The VSD is already located above the navel, about 1.5-2 fingers. The beginning of the third trimester is 29-30 weeks. The UMR of the uterus is slightly longer than the term, approximately 31 cm. At this moment, many women complain of high blood pressure and this is not surprising, because The uterus has greatly increased in size. 9 months of pregnancy and 32 weeks, the length of the uterus is 32 centimeters. At week 36, the fundus of the uterus rises again and reaches the line of the costal arches. Pregnancy is approaching its logical onset; you only have to wait 2-3 weeks before meeting your baby. At week 38, the baby’s weight reaches 2200 kg, although in some cases it may not be much more. A woman experiences heartburn due to the fact that the uterus puts pressure on the digestive organs, because its length is 32 cm. Preparation for childbirth is the 40th week. IMD - 34 cm. Such a pregnancy is usually called full-term. The woman needs to prepare for childbirth and for the first meeting with the baby.

Why can the height of the uterine fundus differ from the average from week to week? Several factors can have an impact:

• child's weight;
• the structure of the expectant mother (height, weight);
• fetal position;
• a pregnant woman is bearing 2 or more children;
• amount of amniotic fluid.

Why is the fundus of the uterus during pregnancy lower than the statistical norm? Factors:

• Mom’s figure is curvy and her pelvis is wide;
• little amniotic fluid;
• the gestational age does not correspond to the actual one;
• possible delay in fetal development.

Why is the fundus of the uterus during pregnancy higher than the statistical norm? Factors:

• narrow pelvis in a pregnant woman;
• multiple pregnancy (a woman carries more than one child);
• the position of the fetus is incorrect;
• a lot of amniotic fluid;
• For the set date, the fetus is larger than normal.

The height of the uterine fundus by week of pregnancy will help you be confident in the successful course of pregnancy and the development of the baby. Be healthy!

During pregnancy, a woman undergoes regular examinations by doctors: a local gynecologist and related specialists. Such clinical observation helps to prevent possible deviations from the normally ongoing process of gestation. During the examination, the gynecologist determines various indicators and sizes, which he correlates with the norm. This is done during a general examination, external obstetric examination, and also a speculum examination.

The height of the uterine fundus (UFH) is an important indicator for the doctor. It not only shows how the condition of the mother and fetus corresponds to the norm during this period of gestation, but also allows you to detect pathology with a simple external examination and palpation.

In this article we will analyze the normal sizes of the uterus during pregnancy and provide a table with the values ​​of the UMR by stage of pregnancy.

External obstetric examination

Determination of the location of the uterus, the UMR and other normal indicators occurs during an external study of the parameters of a pregnant woman. The height of the uterine fundus is not the only indicator that is taken into account by the attending physician. In addition, the doctor compares various parameters of the baby’s position in the womb with the norm.

Such indicators are determined using a special obstetric technique - Leopold's techniques. There are four of them in total, and during the first one the doctor determines an indicator called the height of the uterine fundus. To obtain it, you need to measure the length to this point, more about this will be discussed below.

Leopold's maneuvers not only allow you to determine AMD, but also indicate the location of the child in the mother's womb. This is important for deciding on the method of delivery.

VYD

The fundus of the uterus is the part of the organ directed upward; on the sides of it are the mouths of the fallopian tubes, and from below the fundus of the uterus passes into the body, in which most of the fetus is located. The fundus of the uterus is the widest part of the womb; at the time of pregnancy, the baby’s buttocks and legs should be located there. This will indicate that the head will be located at the entrance to the pelvis, which corresponds to the biomechanism of physiological childbirth.

The height of the fundus of the uterus changes during the entire gestation period along with the other dimensions of the organ. This occurs as the fetus and extra-embryonic organs increase and the volume of amniotic fluid accumulates.

VDM allows you to estimate the size of the organ, which changes several times during gestation.

How to measure VDM? The measurement begins with determining the level of the bottom during the 1st Leopold maneuver. Next, measure the distance from this level to the upper edge of the pubic symphysis. The height of the fundus of the uterus is the length from the symphysis to the found point in centimeters. The measurement must be done using a tape, then the indicator is compared with the norm.

Sizes by week

The height of the uterus by week is determined in order to find out whether the UGM corresponds to the gestational age. Numerous clinical observations have determined the normal size of the uterus during pregnancy. They must be taken into account by the gynecologist when caring for any woman.

The height of the uterus within normal values ​​is presented in the following table:

The size of the VDM at each week of pregnancy in centimeters is close to the gestational age itself. The numbers differ by only a few cm, this allows the specialist to easily navigate the terms and sizes without remembering the ideal standards.

Compliance with the height period is not determined in vain. An increase or decrease in the size of the uterus may indicate various abnormalities during pregnancy.

It is necessary to analyze the reasons for the non-compliance of the VDM with the norm and methods for their correction.

Reasons for increasing size

Fluctuations in size within two to three centimeters do not play a significant role. If the height changes by more than 3 centimeters, additional diagnostics should be carried out to determine the cause of the deviation.

VDM may advance the gestational age in the following cases:

• Multiple pregnancy - this condition is detected during the first ultrasound screening of a pregnant woman. However, if you measure the height at 8–9 weeks, you can already assume the presence of two babies in the uterus.
• Large fetus - this condition is not the norm and means that the baby is significantly larger than the normal size of the baby in length and body weight. Causes severe complications during childbirth and requires special measures for delivery.


• Polyhydramnios - the formation of a large amount of amniotic fluid can be associated with various endocrine disorders, pathologies in the kidneys, and so on. An ultrasound examination can confirm an increased amount of amniotic fluid.
• Anomalies in the structure of the organ. If there are jumpers in the organ cavity, the position of the bottom changes. In some cases, AMD may advance the gestational age.
• Narrow pelvis - with this pathology, the lower part of the fetus does not descend to the entrance to the pelvis; the height of the uterine fundus in this case increases.
• Oblique position of the fetus. The position of the baby inside the womb changes during pregnancy, but if at the time of birth the fetus is in the cavity of the reproductive organ in an oblique position, then this is considered a deviation from the norm.

The listed conditions require further diagnosis, after which the doctor prescribes correction methods.

Reasons for downsizing

The height of the uterine fundus may be more than 3 centimeters below normal. This is also a sign of possible pathology.

If VDM lags behind the norm, you should suspect:

• Wide and capacious basin. In this condition, fetal descent occurs faster than necessary. This is not a pathology if the cervical canal is closed and there is no insufficiency. For a woman, a capacious pelvis is a good sign, since the large size of the bone cavity reduces the risk of injury during childbirth.
• Incorrectly calculated gestational age. If a woman and an obstetrician-gynecologist have calculated the gestational age with an error, then the GMR may be reduced below normal.
• Hypotrophy and underdevelopment of the baby. This pathology may be the cause of insufficient AMR. The small size of the fetus may be associated with various pathologies, which are combined under the term “intrauterine growth retardation syndrome.” The attending physician must determine the cause of this condition.
• Oligohydramnios - a decrease in the volume of amniotic fluid can also affect the bottom level. If the amount of water is reduced, this can lead to miscarriage and fetal malformations.
• Hypothyroidism in the mother. Endocrine pathology greatly affects the course of pregnancy. If the expectant mother does not receive treatment for existing hypothyroidism, a decrease in the level of thyroid hormones can affect the rate of development of the baby and extra-embryonic organs.

The indicated deviations of the VDM from normal sizes require correction, but before this, the doctor prescribes additional diagnostic procedures.

Diagnosis and management of pregnancy

If, during clinical observation of a pregnant woman, a discrepancy between the height of the organ fundus and the gestational age is discovered, the obstetrician-gynecologist begins to identify possible causes.

During the diagnosis, an ultrasound examination is performed, blood and urine tests are studied, and consultations with related specialists are prescribed. An endocrinologist, nutritionist, therapist, and ultrasound doctor can help identify the cause of the pathology. If a woman has a somatic pathology, she is also examined by an appropriate specialist.

Once the cause of the discrepancy has been identified, the following treatment measures may be prescribed:

• Balanced nutrition and proper diet.
• Taking vitamins and microelements.
• Hormonal agents to compensate for endocrine disorders.
• Treatment of concomitant diseases.

The size of the uterus during pregnancy may not correspond to the norm for reasons that cannot be eliminated during pregnancy. But knowing about the problem, the doctor decides on the method of delivery. In some cases, a planned caesarean section is prescribed.

Size of the uterus during pregnancy by week (table): why the size does not correspond to the timing

Based on the dynamic development of the uterus and the height of its fundus, the doctor assesses the successful course of pregnancy. How to correctly measure the changing size of an organ? What deviations affect the increase? What to do if there is a threat of miscarriage?

The uterus of a nulliparous woman has very modest dimensions: 5.0 – 6.0 cm in length; 3.4 – 4, 0 – in width. Its weight is about 50 grams. Over 9 months of gestation, the organ undergoes enormous growth, increasing in size, thinning, reaching a weight together with the fetus of up to 4 kg. This transformation, recorded weekly in a special table of indicators, constitutes the dynamic course of pregnancy.

• Measurements using Leopold's method
  • Fundal height of the uterus in early stages
  • When can an organ be measured?
• Parameters of the uterus during pregnancy
  • Uterine wall thickness
  • Location
  • Dimensions for anatomical defects
• Gradual changes in the uterus during pregnancy
  • Uterus sizes by week
  • When can you feel the uterus yourself?
  • Neck sizes in table
  • Normal sizes of the uterus by week of pregnancy in the table
  • What can affect the height of the uterine fundus?
  • Changes in the uterus during multiple pregnancy
• Techniques to support a thin uterus or an exhausted cervix when there is a threat of premature birth
• Why the size of the uterus does not correspond to the term

Method for measuring the uterus during pregnancy

The measurement is carried out using the “Leopold technique” - a special obstetric technique.

1. The measurement is carried out with an empty bladder.
2. The woman lies on her back on the couch.
3. Raising your hand from the pubic area along the midline of the abdomen, you feel the area where the dense tissue becomes soft and loose - this is the border of the uterus, called the bottom.
4. Using a soft ruler, measure the distance from the pubic bone to the bottom.

With physiologically correct development, the distance in centimeters coincides with the period established in weeks. Possible error: 1 – 2 cm. This calculation is applicable up to 37 – 38 weeks. Later, the uterus settles into the pelvic cavity in preparation for childbirth.

Is it possible to take measurements at an early stage?

Table of norms for the cervix

Not only the uterine cavity, but also the cervix undergoes changes. From the moment of conception, it lengthens, softens, and changes color. Its length reaches 4.0–4.5 cm. Subsequently, a gradual shortening of the canal is noted.

The following parameters indicate the successful development of pregnancy.

Important! Rapid shortening of the cervix is ​​a threat to full pregnancy. Such progress is especially dangerous at a period before.

Table of norms of UMR - fundal height of the uterus

Fundal height of the uterus is measured weekly, starting at 14 weeks. The data is recorded in the patient’s individual table to monitor the dynamics. A physiologically normal pregnancy corresponds to the following indicators.

Why the uterus does not meet its term

The height of the uterine fundus does not always correspond to the indicated period. Deviations can be significant, although the date of conception is set correctly. Why does this situation arise?

Placental insufficiency leads to a delay in the formation of the embryo, as a result – to reduced dynamics. This condition is caused by the presence of long-term debilitating toxicosis, severe.

The opposite situation is the increased size of the uterus in relation to gestational age. A common diagnosis is an increased amount of amniotic fluid. It occurs as a result of infection with an intrauterine infection (herpes, and others). It has been noted that polyhydramnios occurs in women with a history of surgical or spontaneous abortion.

During a dynamically developing pregnancy, the upper border of the uterus fits within the allotted weekly norms reflected in the table. But if deviations occur, do not panic; non-compliance with accepted indicators does not indicate fetal pathology. There are many reasons why the size of the uterus exceeds or falls short of normal. It is necessary to conduct an examination and adjust the timing and condition.

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When does the belly start to get bigger during pregnancy?

Estimating the height of the uterine fundus by week of pregnancy has serious diagnostic significance. In addition to calculating the gestational age, gynecologists predict the condition of the fetus each week and suggest possible deviations from its normal development.

The length of the uterus is no more than 8 centimeters in a woman of reproductive age. Of these, the cervix occupies about 2.5 cm. Height - 4 cm. The uterus increases during pregnancy and by the 40th week of pregnancy it has a similar length - 40 cm. Before pregnancy, the weight of the organ is 50 grams. In the third trimester - about 4 kilograms.

Fundal height of the uterus by week - how to determine

• In the early stages, we feel the size of the uterus through the vagina.
• 12th week - the uterus reaches the symphysis pubis.
• From the 13th week it extends beyond the pelvic area and can be felt through the abdominal wall.
• With the pregnant woman lying down, the distance between the pubic symphysis and the highest point of the uterus (fundus) is measured with a measuring tape.
• The results are recorded in a notebook to track their dynamics.
• Approximate dimensions of the height of the uterine fundus by week in centimeters: 8-9 weeks - 8-9; 16-17 weeks – 14-19; 38-39 weeks – 35-38.
• The fundal height (FHR) approximately corresponds to the gestational age in weeks.

If at a certain period the height of the uterine fundus exceeds normal values, then the doctor may suspect a multiple pregnancy, and if less, low fetal growth rates, oligohydramnios, oblique or transverse position.

A one-time determination of the height of the uterine fundus is not very informative.

It should be noted that the size of the IRR at different stages of pregnancy is the statistical average. It differs in large and short women, who have anatomically different sizes of uteruses.

Fundal height of the uterus during pregnancy by week

IN 8-9 weeks the uterus is the size of a goose egg. Until this time, it cannot be felt through the abdominal wall, as it is located in the pelvic area. Only from 3 months - located above the pubis. The placental system begins to actively function, and the corpus luteum gradually disappears. The embryo begins to move and blood vessels form.

10-13 weeks. The length of the uterus is 11 cm. Toxicosis intensifies due to the cleansing of the mother’s body, which is rebuilt to normalize the trophism of the fetus.

14-16 weeks. The embryo completes the process of creating organs. The uterus increases to 14 cm.

16 weeks– the fundus of the uterus is located in the middle of the distance between the navel and the pubis.

17-18 weeks. The placental system has been formed. The fetus has a fully developed cerebellum, limbs, and immune system. The length of the uterus is 18-19 cm.

WITH 20th week The size of the uterine fundus begins to approximately correspond to the duration of pregnancy. So, at the 21st week, the distance between the pubis and the fundus of the uterus is approximately 21 cm. Subsequently, it increases weekly by 1 cm. The fundus of the uterus is projected at this stage below the navel by 2 fingers.

22-24 weeks. The embryo develops muscles and bones. Its weight is about 600 grams. At week 24, the pulmonary system begins to form. The uterus increases to 23 cm. In the 24th week, the fundus of the uterus is located in the navel with a height of 24 centimeters.

28 weeks The height of the uterine fundus is 28 cm. The uterine fundus is located 2 cm above the navel (two folded fingers).

29-30 weeks. In the third trimester, the uterus is about 31 cm. A pregnant woman’s blood pressure increases due to the large size of the fetus.

32 weeks– the location of the uterus is in the middle of the distance between the xiphoid process of the sternum and the navel (9th month), and is 32 centimeters.

36 weeks- on the line that connects both costal arches.

38 weeks. After the 38th week, the uterus begins to descend. The bottom of the organ puts pressure on the stomach and diaphragm. The mother digests food slowly and develops heartburn. The child's weight is 2100-2250 grams.

On 40th week VDM – 32 cm. The bottom is again located between the ribs and the navel. The pregnancy is considered full term. The baby is actively growing, and the mother’s body is preparing for childbirth. When the baby descends into the pelvis, labor begins.

Fundal height of the uterus by week, what affects it:

• Fruit size

The table shows that UMR in centimeters approximately corresponds to the gestational age in weeks, plus or minus 1-2 cm. At 36-37 weeks, the fundus of the uterus rises to the highest point during the entire pregnancy period, and begins to put pressure on the diaphragm, stomach, due to than food is digested much more slowly, and as a result, heartburn and heaviness in the stomach may appear. Starting from 38 weeks of pregnancy (about 2 weeks before birth), the fundus of the uterus drops by 2 - 3 cm. This is due to the fact that the fetal head is installed in the pelvic cavity.

Discrepancy between the height of the uterine fundus and the expected period

It is important to remember that UGM can be affected by fetal size, excess amniotic fluid, twins, abnormal fetal position and other features of pregnancy. Therefore, when determining the gestational age, VDM is taken into account in conjunction with other signs (last menstruation, first movement, etc.).

VDM is less than the gestational age.

At a gestation period of more than 28 weeks, the IMD above the pubic symphysis in centimeters approximately corresponds to the expected period of the baby in weeks. A lag of 3 cm or more from the norm for a given stage of pregnancy is considered pathological. The absence of an increase in IUGR within 2-3 weeks suggests the presence of intrauterine growth retardation (IUGR).

• error in determining the gestational age;
• delayed fetal development, abnormalities of its development;

During the examination, the gynecologist measures me and tells me the size.

I found this instruction on the Internet.

1. Empty your bladder. This is necessary to accurately measure the height of the uterine fundus.

2. Lie on the bed with your legs straight.

3. Determine where the uterus ends. To do this, place your hands on the midline of the abdomen in the area of ​​the pubic bone. Gradually move your fingers upward, trying to feel the place where the denser part of the abdomen turns into a soft one. This will be the bottom of the uterus.

4. Take a measuring tape and measure the resulting distance. Normally, the height of the uterine fundus corresponds to the obstetric period in weeks, plus or minus 2-3 centimeters. And only towards the end of pregnancy, a couple of weeks before birth, the baby descends into the small pelvis, and the height of the uterine fundus becomes several centimeters lower.

5. Too large a discrepancy between measurements and obstetric term may indicate either that the gestational age is set incorrectly, or oligohydramnios/polyhydramnios, etc. It is recommended to monitor the dynamics of uterine growth to ensure that the baby is developing normally.

Note:

The height of the uterine fundus in centimeters approximately corresponds to the gestational age in weeks plus or minus 2-3 cm. This range of fluctuations in UMR values ​​takes into account the individual characteristics of each pregnant woman, and if this indicator is much lower than the expected week of pregnancy, then, given a combination of factors, we can assume a frozen pregnancy.

Fundal height of the uterus by week

The main changes in the female body during pregnancy are characteristic of the condition of the uterus. During the normal development of pregnancy, it is in the uterus that the fertilized egg is attached for growth and development in the future. To provide the necessary living space for the growing fetus, the size of the uterus constantly increases.

Changes in fundal height of the uterus by week during pregnancy

As the uterus grows during pregnancy, it will gradually rise higher and higher, reaching a maximum at around the 37th week of pregnancy. In this case, the height and size of the uterus are of rather important diagnostic importance. By taking these parameters into account, a specialist can establish the approximate duration of pregnancy, drawing conclusions on the characteristics of its course, determining the size and degree of development of the fetus, identifying possible deviations in its development in the early stages. Consequently, gynecologists attach great importance to examining and assessing the height and size of the uterus during each examination of the patient.

How is the height of the uterine fundus determined during pregnancy?

To determine the size of the uterus in the early stages, digital palpation through the vagina is used. However, already from the second trimester, after approximately 13-14 weeks of pregnancy, the uterus extends beyond the pelvic area, rising higher. In this case, it can already be palpated through the abdominal wall. Now the gynecologist will determine the size of the uterus each time, namely the height of the fundus. VDM (fundal height of the uterus) is the distance between the highest point of the uterus (fundus) and the upper point of the pubic symphysis.

The height of the uterine fundus is measured in centimeters with the woman lying on her back, using a special pelvis meter or a standard measuring tape. The doctor enters all the obtained indicators into the pregnant woman’s exchange card each time - for their control and comparison, an accurate understanding of the dynamics. When assessing these indicators, a table is used indicating the norms of compliance of the GMR with a specific stage of pregnancy.

The table used shows the norm indicators. They show that in centimeters the height of the uterine fundus approximately corresponds to a certain period of pregnancy per week +/- two to three weeks. In this range of fluctuations in UMR indicators, the individual characteristics of each pregnant woman are taken into account, including her physiological parameters.

If there is a significant discrepancy between the height of the uterine fundus and normal values ​​during a certain period of pregnancy, the doctor may have doubts about any disturbances in the normal course of pregnancy. In particular, overestimated parameters may indicate that the fetus is too large or has polyhydramnios.

Low rates of fetal development, oligohydramnios, and oblique or transverse position of the fetus may be the reason for underestimated indicators of the fetus.

But you should not give in to worries and panic, resorting to premature and unconfirmed conclusions if the height of the uterine fundus does not correspond to the specific stage of pregnancy.

In particular, let's not forget about the possible error factor. After all, there is a possibility of error when determining a specific period.

The second factor that confirms that the worries are unjustified is that the cause of inflated indicators may be a multiple pregnancy.

The third factor is that indicators of the height of the uterine fundus remain uninformative on their own.

The dynamics of changes must be assessed. If from week to week, or every month, the uterus rises higher and higher, in accordance with normal dynamics, there is usually no special reason for concern. But if a certain violation is suspected, the doctor will direct the woman to undergo the necessary additional examinations (Doppler ultrasound, ultrasound, CTG, etc.), this appointment should not be neglected.

It should also be taken into account that two to four weeks before birth the baby begins to lower into the pelvis - the process is called abdominal prolapse. Also, at the same time, a slight decrease in the uterus occurs, the UMR indicator decreases by several centimeters.

Uterus during pregnancy

Determination of the height of the uterine fundus by week during pregnancy

Among the mandatory studies that are carried out by the attending physician to assess the normal and healthy course of pregnancy is the measurement of the height of the uterine fundus by week.

When a woman first sees a doctor, she is usually approximately 4 weeks pregnant. Moreover, the size of the uterus is similar to a chicken egg.

At 8 weeks of pregnancy, the size of the uterus increases, approaching a goose egg; by 12 weeks the uterus reaches the upper edge of the pubis. Then the height of the fundus of the uterus at each examination is determined by the doctor using a regular centimeter tape - a measurement is taken from the upper edge of the pubis to the fundus of the uterus.

The height of the uterine fundus by 16 weeks of pregnancy is determined at the middle of the distance between the pubis and the navel.

From the 12th week of pregnancy, the size of the uterus already corresponds to the week of pregnancy. Therefore, the size at week 21 is 21 centimeters and so on - the height of the uterine fundus increases by one centimeter every week

At the 24th week, the fundus of the uterus is determined at the level of the navel, and its height is also 24 cm.

The height of the uterine fundus at the 28th week of pregnancy is 28 cm, measured 2 cm above the navel.

The height of the uterine fundus at 32 weeks of pregnancy is 32 cm, determined between the fluff and the xiphoid process.

At the 36th week of pregnancy, the height of the uterine fundus is 36 cm, determined at the level of the costal arches. It is considered the highest position of the uterine fundus.

Closer to childbirth, the uterine fundus drops slightly; the height of the uterine fundus at 40 weeks is approximately 32 cm.

Of course, it should be taken into account that these are basically average statistical data; in fact, they cannot have completely the same sizes of growing uteruses in short or large, tall women.

Today, the maximum accuracy and reliability of the result can be obtained from ultrasound data, but quite often its implementation is not practical.

Consequently, gynecologists today in antenatal clinics determine the height of the uterine fundus week by week, based on the measurements obtained, in order to decide on additional studies to clarify the diagnosis.

What can affect the height of the uterine fundus by week:

Fundal height of the uterus by week

Throughout pregnancy, gynecologists measure standing height and uterine size week by week. This helps them not only determine the duration of pregnancy, but also make a conclusion about its course - whether there are developmental abnormalities in the fetus or whether the development is normal. Therefore, you should not be surprised that your leading doctor pays special attention to this organ during each examination. Remember, he is not worried about himself, but about you and your baby. Are you wondering how your pregnancy is going, but you can’t decipher the numbers? In today’s article we will tell you in detail what the height of the uterine fundus depends on by week, and also introduce you to the table in which the norms are set.

Before pregnancy, in women of reproductive age, the uterus has the following dimensions and weight: length - about 8 cm (maybe a little less or more), height - 3.6 - 4 centimeters, cervix - approximately 2.6 cm, weight - 45 -55 g. During pregnancy, the size and height of the uterine fundus changes week by week and by the end of the 3rd trimester at 40 weeks its length reaches 40 cm and weight 3.5-4.1 kg.

Fundal height of the uterus by week, how to determine:

• at the beginning (in the first weeks), the gynecologist can determine its size only through a gynecological examination - through the vagina, palpating it;
• at 11 and 12 weeks, the VSD of the uterus reaches the pubic symphysis;
• from the 14th week it can already be felt through the abdominal wall, because its dimensions already extend beyond the pelvic region;
• A fairly common method for determining height measurements and assessing the fundus of the uterus is measurement using a centimeter tape. The expectant mother is in a supine position, and her leading gynecologist measures the distance from the symphysis pubis to the fundus of the uterus;
• The obtained data is recorded in a log in order to monitor further developments.
• size of the height of the uterine fundus by week (measurements from the 8th week of pregnancy): 8-9 weeks - about 8-9 centimeters, 10, 11, 12 and 13 weeks of pregnancy - from 10 to 11 cm, at 14-15 weeks - from 12 to 13 cm, at 16-17 weeks - from 14 to 19 cm, at 18, 19, 20 and 21 weeks - from 18 to 24 cm, at 39-40 - from 35 to 40 cm (more details see below for meanings).
• The VSD (fundal height) of the uterus corresponds to approximately one week of pregnancy.

By the way, if during an examination the gynecologist notices deviations from the norm in a larger direction, this may mean that the patient is carrying twins or triplets. To a lesser extent - a woman experiences oligohydramnios, a transverse or oblique position of the fetus, or slow development of the baby. The height of the uterine fundus must be measured constantly in order to monitor the dynamics of the results.

The given average statistical dimensions of the height of the uterus may not correspond to reality, because Before pregnancy, each woman's uterus has an individual size.

Height of the fundus of the uterus during pregnancy, table and description

The initial measurement begins at 8-9 weeks, when the uterus changes its shape and becomes like a goose egg. It is from this period that it can be felt, because it extends beyond the pelvis and has a new position - just above the pubis. In addition, it is at this time that the corpus luteum begins to disappear gradually, and the placenta begins to work actively. The baby, despite his small size, is already moving, and blood vessels are beginning to form in his body. At 10-13 weeks, the length of the pregnant woman’s uterus reaches approximately 10-11 cm. The body tries to cleanse itself, due to this toxicosis increases. The height of the uterine fundus at 14-16 weeks already reaches approximately 15 cm. By this period, all organs of the fetus are already formed. The uterus changes its position and is already in the gap - from the pubic part to the navel. At 17-18 weeks, the UMR of the uterus = 19 cm. For this period, the mother has already formed the placenta, and her baby has the immune system, all limbs and the cerebellum. Half term is 20 weeks. The height of the uterine fundus by week corresponds (approximately) to the period of pregnancy of a pregnant woman. The uterus is located 1.5 fingers below the navel. The weight of the fetus at 22-24 weeks is 550-610 grams. His lungs begin their formation, and his muscles and bones begin to develop. The size of the uterus reaches 23 cm. The height of the uterine fundus at week 28 = 28 cm. The VSD is already located above the navel, about 1.5-2 fingers. The beginning of the third trimester is 29-30 weeks. The UMR of the uterus is slightly longer than the term, approximately 31 cm. At this moment, many women complain of high blood pressure and this is not surprising, because The uterus has greatly increased in size. 9 months of pregnancy and 32 weeks, the length of the uterus is 32 centimeters. At week 36, the fundus of the uterus rises again and reaches the line of the costal arches. Pregnancy is approaching its logical onset; you only have to wait 2-3 weeks before meeting your baby. At week 38, the baby’s weight reaches 2200 kg, although in some cases it may not be much more. A woman experiences heartburn due to the fact that the uterus puts pressure on the digestive organs, because its length is 32 cm. Preparation for childbirth is the 40th week. IMD - 34 cm. Such a pregnancy is usually called full-term. The woman needs to prepare for childbirth and for the first meeting with the baby.

Why can the height of the uterine fundus differ from the average from week to week? Several factors can have an impact:

• child's weight;
• the structure of the expectant mother (height, weight);
• fetal position;
• a pregnant woman is bearing 2 or more children;
• amount of amniotic fluid.

Why is the fundus of the uterus during pregnancy lower than the statistical norm? Factors:

• Mom’s figure is curvy and her pelvis is wide;
• little amniotic fluid;
• the gestational age does not correspond to the actual one;
• possible delay in fetal development.

Why is the fundus of the uterus during pregnancy higher than the statistical norm? Factors:

• narrow pelvis in a pregnant woman;
• multiple pregnancy (a woman carries more than one child);
• the position of the fetus is incorrect;
• a lot of amniotic fluid;
• For the set date, the fetus is larger than normal.

The height of the uterine fundus by week of pregnancy will help you be confident in the successful course of pregnancy and the development of the baby. Be healthy!

The biggest changes that occur in a woman's body during pregnancy are probably related to her uterus. This is where the fertilized egg is normally attached for its further growth and development. To provide the growing fetus with the space necessary for life, the uterus constantly increases in size. As it grows, it rises higher and higher, reaching a maximum at approximately 37 weeks of pregnancy.

The size of the uterus and its height are of great diagnostic importance. They help determine the approximate duration of pregnancy and draw conclusions about its course, as well as assess the degree of development and size of the fetus and identify possible deviations in time. That is why the gynecologist will examine and evaluate the size and height of the uterus at each examination of his ward.

In the early stages, the size of the uterus is determined by finger palpation through the vagina. But from the second trimester, after approximately 13-14 weeks, the uterus extends beyond the border of the pelvic region, rising higher, and it can already be felt through the abdominal wall. Now the gynecologist will measure it every time, or rather, the height of the bottom.

Fundal height of the uterus (UFH) is the distance between the upper point of the pubic symphysis and the highest point of the uterus, which is its fundus. It is measured in centimeters in the position of a pregnant woman, lying on her back, using a special pelvis meter or a regular measuring tape. The doctor enters all the indicators into your exchange card each time in order to be able to compare them and track the dynamics.

To evaluate the indicators, use a table that shows the standards for compliance with the gestational age of pregnancy.