What does the inchoate symptom that buttock shows first have?

summary

Fetal position, that is, the position and posture of the fetus in the abdomen, whether the fetal position is correct or not, will directly affect the mode of production. Under normal circumstances, because the fetus's head is heavier than the body, in the amniotic fluid is more head down, buttocks up position. But the baby is in the abdomen, if Baoma does not use medical equipment, it is difficult to detect the fetal position. So what are the early symptoms of hip presentation? Let's get to know each other.

What does the inchoate symptom that buttock shows first have?

1. Breech delivery, in order to adapt to the conditions of the birth canal, according to the fetal hip, fetal shoulder from the first three parts of the delivery machine to transfer delivery. Taking the right anterior sacral position as an example, after labor, the fetal buttocks are connected to the right oblique diameter of the pelvic entrance by the trochanteric diameter. The anterior hip drops slightly faster, reaches the pelvic floor first, and rotates 45 degrees counter clockwise when encountering pelvic floor resistance ° And to the pubic arch.

2. At this time, the fetal intertrochanteric diameter is consistent with the maternal pelvic anteroposterior diameter, the former hip is the fulcrum, and the fetal body adapts to the lateral bending of the birth canal, so that the posterior hip is delivered from the front edge of perineum first, and then the fetal body is slightly straightened, the former hip is delivered from under the pubis, and the fetal legs and feet are delivered successively. After the delivery of the fetal buttocks and lower limbs, the fetal body rotates outwards, the fetal back turns clockwise to the front or right front, the diameter of the two shoulders connects with the transverse diameter or right oblique diameter of the pelvis, and descends to the pelvic floor along this diameter line. At this time, the anterior shoulder rotates counterclockwise. The diameter between the acromion is consistent with the anterior and posterior diameter of the pelvic outlet.

3. After the anterior shoulder was lowered to below the pubic arch, the fetal body flexed laterally, so that the posterior shoulder and upper limb were delivered from the front edge of perineum, and then the anterior shoulder and upper limb were delivered from below the pubic arch. When the shoulder passes through the perineum, the sagittal suture of the fetal head connects to the left oblique diameter or transverse diameter of the pelvic entrance, and descends along this line, while the fetal head bends. When the occipital bone reaches the pelvic floor, it is rotated to the left and forward to make the occipital bone face the pubic symphysis, and take the occipital fossa under the pubic arch as the fulcrum, the fetal head continues to bend, so that the chin, face and forehead are successively exposed out of the perineum, and finally the fetal head is all delivered.

matters needing attention

Check the abdomen of the mother to be, you can see the uterus is longitudinal oval, the fetus and the mother's body longitudinal axis is consistent. Touch the bottom of the mother's legs above, can touch the baby's irregular, soft and wide hips. Through B-ultrasound examination, we can also find the situation of fetal hip exposure, B-ultrasound examination can also determine the type of fetal hip exposure, of course, we can also monitor the size of the child's body, as well as its fetal head posture.