What's the reason for hip exposure?

summary

The position of the fetus in the uterus is called fetal position, which is basically shaped at 28 weeks of pregnancy (7 months of pregnancy). The normal fetal position is that the head of the fetus is at the entrance of the pelvis of the mother to be, and the limbs bend and cross in front of the chest and abdomen. Breech presentation refers to the inversion of the fetal position, the fetal buttocks in the pelvis of the mother to be. What's the reason for hip exposure? Let's talk about it

What's the reason for hip exposure?

Intrauterine growth retardation. The growth and development of the fetus in the mother is too slow, the body size is small, the activity space will be relatively large, the fetus can move freely, it will lead to buttock exposure

Fetal malformation. Such as hydrocephalus, anencephaly, these deformities caused by hip exposure in about 6%, 2 ~ 3 times more than the healthy fetus. Multiple pregnancy. Multiple births in the womb will limit the baby's activities and make it difficult to turn the body upside down after 28 weeks.

The umbilical cord is the most important factor. Whether the umbilical cord is too short or entangled, it will restrain the fetus, limit its activity in the uterus and make it difficult to turn over. The placental attachment site was abnormal. When the placenta is attached to the lower part of the uterus, the space in the uterus becomes smaller, which prevents the fetus from showing into the basin first, and also causes buttock showing first.

matters needing attention

Clinical application of advanced B-ultrasound, fetal heart sound monitor, to make a comprehensive evaluation of the fetus with buttock presentation, to make the right choice of delivery mode. During pregnancy, before 30 weeks of gestation, buttock presentation can turn to head presentation. If the breech is still exposed after 30 weeks of pregnancy, it should be corrected. If prenatal still can not be corrected, can choose the mode of delivery of cesarean section, in order to reduce the possible harmful consequences caused by breech presentation.