The uterus is horizontally oval

Introduction Abnormal fetal position The position of the fetus in the uterus is called the fetal position. The transverse ellipse of the uterus is one of the basis for diagnosing the transverse position of the fetus. The transverse position is a kind of abnormal fetal position, and the other includes breech position, lateral position, posterior position, and facial position. More common in the breech position, and the horizontal position harms the mother and baby.

Cause

The reason is not clear and may be related to the following:

1, the fetal head is blocked in the basin, such as the head basin is not called and the placenta previa.

2, the scope of fetal activity increased, such as excessive amniotic fluid, loose maternal abdominal wall, twins and premature infants.

3, uterine malformations. Fetal factors that can cause dystocia, including huge fetuses and fetal malformations.

an examination

Related inspection

Gynecological ultrasound examination gynecological examination

The normal fetal position should be the longitudinal axis of the carcass parallel to the longitudinal axis of the mother, the fetal head at the entrance of the pelvis, and the flexion, the ankle is close to the chest wall, the spine is slightly curved, the limbs are flexed and crossed before the chest and abdomen, and the entire carcass is oval. , called the front position of the pillow. Diagnosis of the transverse position: the uterus is a horizontal ellipse, the fetal head is touched on the side of the mother's abdomen, and the pubic symphysis is relatively empty. The fetal heart sounds are most clearly on both sides of the umbilical cord. B-ultrasound examines the fetal head on one side of the mother's abdomen.

Differential diagnosis

Symptoms of the uterus with transverse ovals need to be distinguished from the symptoms below.

(1) Abnormal breech production: At the end of the uterus, the round and hard fetal head can be touched. In the upper part of the pubic symphysis, the softer and irregular fetal hips are placed, and the fetal heart sounds flat or above the umbilicus. Anal or vaginal examinations can touch soft, irregular buttocks, sometimes touching the lower extremities. Ultrasonography can confirm the diagnosis.

(B) abnormal post-occipital position: prenatal discovery, no clinical significance, because most can be converted into anterior occipital position, but after the delivery of the child's head has been connected to the back of the pillow, will affect the progress of labor, should be taken seriously. The posterior position of the pillow can be placed in front of the abdomen and the fetal limbs. The back of the fetus is on the side of the abdomen, and the position is lower. The fetal heart sound is slightly farther away from the side of the abdomen. Clinically, relying on palpation of the abdomen is often difficult to diagnose, and if necessary, it can be diagnosed by vaginal examination or B-ultrasound examination. A vaginal examination reveals that the sagittal suture of the head is consistent with the slanting diameter of the mother's pelvis, with the front bony at its front end and the posterior bronchi at the back. If the sagittal suture is not easily identifiable, it can be distinguished by the direction indicated by the fetal ear wheel.

The normal fetal position should be the longitudinal axis of the carcass parallel to the longitudinal axis of the mother, the fetal head at the entrance of the pelvis, and the flexion, the ankle is close to the chest wall, the spine is slightly curved, the limbs are flexed and crossed before the chest and abdomen, and the entire carcass is oval. , called the front position of the pillow. Diagnosis of the transverse position: the uterus is a horizontal ellipse, the fetal head is touched on the side of the mother's abdomen, and the pubic symphysis is relatively empty. The fetal heart sounds are most clearly on both sides of the umbilical cord. B-ultrasound examines the fetal head on one side of the mother's abdomen.

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