Why is there prolonged pregnancy

summary

I had been planning to give birth naturally, but the expected delivery period had passed for several days, but there was no movement. I was worried that I would die, so I went to the hospital to have a check. The doctor said that it might be an overdue pregnancy, so I had to have a caesarean section, otherwise it would affect the fetus. Today, I'd like to talk to you about why there is an overdue pregnancy.

Why is there prolonged pregnancy

The first aspect: cephalopelvic disproportion: in the late pregnancy, some of the fetuses are larger, the fetal head is delayed in entering the basin, and the cervix is not stimulated, which delays the start of labor.

The second aspect: the secretion of endogenous prostaglandin and estradiol is insufficient, while the level of progesterone is increased. It is generally believed that the imbalance of the proportion of estrogen and progesterone leads to the advantage of progesterone, which inhibits prostaglandin and oxytocin, so that the uterus does not contract and delays the onset of labor.

The third aspect: when anencephalus is not complicated with polyhydramnios, the hypoplasia of pituitary and adrenal axis is caused by the absence of thalamus in the fetus, the deficiency of adrenocortical hormone produced by adrenal cortex of fetus and dehydroepiandrosterone 16 α - hydroxysulfate, the precursor of estriol, and the insufficient stimulation of lower uterine segment by small and irregular fetal head.

matters needing attention

Female friends in pregnancy must pay attention to prenatal examination, to avoid prolonged pregnancy, otherwise there is a great impact on the fetus, the most important thing is to keep a good mood, mental pleasure.