Is the head position of pregnancy in the basin, and in the late stage of pregnancy, how to tell whet

No, the cephalic position refers to the fetus's head below, the buttocks on the top, and the cephalic position into the pelvis is the entrance plane of the fetal head with the double top diameter into the pelvis.

When a pregnant woman is in the third trimester, the baby's head will be in the womb. Moreover, the baby's head will move downward, and the pregnant woman will also have some corresponding sensations after entering the basin. <>

Generally, when doctors judge whether the baby has entered the basin, they will touch the pregnant woman's abdomen to make relevant judgments. At this time, the doctor can use ultrasound to determine whether the baby is in the pelvis, and the pregnant woman herself will have some corresponding symptoms. For example, after the baby is in the pot, the pregnant woman will feel a lot more relaxed in the upper abdomen, and the appetite of the pregnant woman will be much better, because the baby's head will be lifted to reduce the pressure on the pregnant woman's own stomach.

Therefore, pregnant women will feel that their stomach is partially empty, and their appetite will become better when eating. After the baby is in the pot, the pregnant woman may feel tightness and pain in the abdomen, and there may be some irregular contractions. As the baby's position declines, it will directly affect the rectum and bladder of the pregnant woman, and compress these parts, so that the pregnant woman will feel constipation and frequent urination after the baby enters the pot.

Generally, when a pregnant woman finds out that her baby is in the womb, it means that her baby may be born soon. At this time, pregnant women should make relevant preparations and prepare some things they need in advance, that is, a delivery bag, and carry them with them when they give birth. Moreover, the sleeping position of pregnant women in the third trimester of pregnancy also needs to be changed, and at this time, pregnant women should sleep on their sides.

This can avoid the occurrence of hypoxia in the baby in the womb, and can also relieve some pain in the pregnant woman's body, which is a better sleeping position for both the pregnant woman and the baby. <>

Many pregnant women experience anxiety during the third trimester of pregnancy when they are about to give birth. In this case, the pregnant woman's family should accompany the pregnant woman more and communicate with them more in daily life.

First of all, you need to know whether the fetal head is in the basin, you need to go to the hospital to do the corresponding examination, the doctor will go through B ultrasound to determine whether the fetal head is in the basin, but you will also have a certain feeling, if you feel that your appetite increases, and the stomach suddenly has a great sense of pressure, touch the fundus with your hands, and feel that the position of the uterine fundus has moved down, then it also indicates that the fetal head has entered the basin.

As the fetus descends, the enlarged uterus also declines, the pressure on the digestive system and respiratory system is reduced, and the pregnant woman can consciously breathe smoothly and the stomach fullness is reduced, and at the same time, due to the pressure of the descending fetal head on the rectum and bladder, symptoms of frequent urination and constipation may occur.

If the abdomen hurts, there is always a feeling of falling, the appetite increases, the fundal position is touched, and the fundal position is appropriately moved downward, then it can be proved that the fetal head is in the pelvis.

Fetal Head Position The fetal position is the position of the maternal pelvis that represents the presentation of the presenting part, that is, in the four phases of the pelvis - left anterior, right anterior, left posterior, and right posterior. The representative bone of the parietal presentation is occipital (abbreviated as O); The representative bone of the breech presentation is the sacrum (abbreviated as S); The first to show the face is the chin bone (mentum, abbreviated as m); The representative bone of the shoulder presentation is the scapula (abbreviated as SC). How to write the fetal position The way to write the fetal position is indicated by three aspects:

1. Representing the bone on the left or right side of the pelvis, abbreviated as left (L) or right (R); 2. Representing the name of the bone, such as "occipital", that is, "O", the buttocks are "sacral", that is, "S", the face is "chin", the fetal head is "M", and the shoulder is "shoulder", that is, "sc"; 3. Represent the bone in the pelvis before, behind or horizontally. For example, if the parietal presents first, the occipital bone is on the left side of the pelvis and faces forward, and the fetal position is left occipital anterior (LOA), which is the most common fetal position. The abbreviations for each fetal position are as follows:

There are six types of fetal presentation: Left anterior occipital presentation (LOA) Left transverse occipital (lot) Left posterior occipital (LOP) Right anterior occipital presentation (ROA) Right transverse occipital (ROT) Right posterior occipital presentation (ROP) There are six fetal positions for gluteal presentation: Left presacral (LSA) Left sacral transverse (LST) Left posterior sacral (LSP) Right presacral (RSA) Right sacral transverse (RST) Right posterior sacral presentation (RSP) There are six fetal positions for facial presentation:

Left Anterior Mental (LMA) Left Transverse Mental (LMT) Left Posterior Mental (LMP) Right Premental Transverse (RMA) Right Transverse Mental (RMT) Right Posterior Mental (RMP) There are four fetal positions for shoulder presentation: Left anterior shoulder (LSCA) Left posterior shoulder (LSCP) Right anterior shoulder (RSCA) Right posterior shoulder (RSCP) Fetal position and development This segment of the fetal position The fetal head position is closely related to fetal development (growth). Because the head develops the fastest in the process of gestation, the head position of the fetus is constantly changing; 8 weeks - 11 weeks:

The embryo has just developed - development is complete) and the head position is more correct. 12 weeks (3 months) – 16 weeks: (the baby's body, weight is rapid**) The baby's head begins to tilt forward.

5 months (17 weeks to 20 weeks): The fetus has a greater anterior head tilt. 7 months:

The baby's head is positioned with its head facing downwards at a basic level. 9 months – 38 weeks: (the fetus is almost complete) the baby's head is positioned completely downwards (ready for birth).

The fetal head position is a normal fetal position, that is, the fetal head is facing downward, and the longitudinal axis of the fetus is parallel to the longitudinal axis of the mother, that is, the head of the fetus is delivered to the mother first, which is a common fetal position.

At about 38 weeks of pregnancy, the fetal head enters the pelvic cavity, which is called pelvic entry or articulation, accounting for 80%-90% of primiparous women, but there are still 10%-20% who do not enter the pelvis until after labor. When you are fine, move around and move more is conducive to the fetus entering the pelvis!

After the baby enters the pelvis, you will have more obvious contractions, the contractions feel like menstrual cramps, the more the baby goes down, the more obvious your menstrual cramps feel! Some people also experience frequent urination. You can take a shower every day or look in front of the mirror for a few minutes after waking up in the morning, and gradually you will notice that the shape of your stomach will be a little different.

The fetal head is not necessarily in the basin downwards, but it is impossible to enter the basin if it is not in the head position, the transverse position, or the breech position.

Without entering the pelvis, the prenatal examination is that the doctor opens the index finger and thumb of both hands, and holds the fetal head at the upper edge of the pubic symphysis, and the fetal head is shaky and fixed when it enters the pelvis, and the fetal head can be shaken, and there is a distance of two horizontal fingers between the fetal head and the pubic bone.

Generally speaking, there are several reasons why the pelvis cannot enter the pelvis, the head and pelvis are not symmetrical, the fetal head and pelvis are asymmetrical, the fetus is too large, the umbilical cord is around the neck, the fetal head cannot be lowered, and the placenta previa. The disadvantage of not being able to enter the pelvis is that it is easy to lead to premature rupture of membranes and caesarean section.