How does late pregnancy see red to return a responsibility?

summary

It's thrilling to see red in late pregnancy. The body of pregnant women is special. Bleeding during pregnancy is a warning sign of abnormal pregnancy. No matter how much or how little the bleeding is, pregnant mothers should be alert. Let's take a look at the following.

How does late pregnancy see red to return a responsibility?

First: pregnant women have had abortion, uterine fibroids, uterine malformations, previous cesarean section, uterine surgery, history of placenta previa, smoking, etc.

Second: during normal pregnancy, the placenta is attached to the anterior wall, posterior wall or top of the uterine wall. If the placental attachment to the uterus is too low, it covers the internal orifice of the cervix and blocks the fetal presentation, it is called placenta previa.

Third: the incidence of placenta previa is about 1 / 200, which can be divided into four types: complete, partial, marginal and low. Because the uterus will become larger with the increase of gestational weeks, the placental position will also rise. If there is still complete or partial placenta previa after 8 months of pregnancy, the risk of vaginal bleeding is greatly increased.

matters needing attention

Because the lower uterine segment is gradually extended in late pregnancy or after parturition, and the placenta located in the inner mouth of the uterus can not be extended correspondingly, the placenta of the placenta previa is stripped from its attachment, resulting in the rupture of the blood sinus and bleeding.