What does second trimester placenta previa mean

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As we all know, pregnancy is a very hard thing. Pregnant women will encounter many difficulties in this process. For example, right placenta previa in the second trimester is one of the most common. Let's talk about the meaning of right placenta previa in the second trimester.

What does second trimester placenta previa mean

First: after 28 weeks of gestation, the placenta adheres to the lower uterine segment, even the lower edge of the placenta reaches or covers the cervical orifice, and its position is lower than the fetal presentation, which is called placenta previa. Placenta previa is one of the main causes of bleeding in late pregnancy and a serious complication of pregnancy. It is more common in multipara, especially in multipara.

Second: according to the relationship between placenta and cervical orifice, placenta previa can be divided into three types: complete placenta previa or central placenta previa: the cervical orifice is completely covered by placental tissue; partial placenta previa: the cervical orifice is partially covered by placental tissue; marginal placenta previa: the placenta adheres to the lower uterine segment, reaches the edge of the cervical orifice, and does not exceed the cervical orifice .

Third: late pregnancy painless vaginal bleeding is a typical clinical manifestation of placenta previa. The reason of bleeding is that with the enlargement of the uterus, the placenta attached to the lower part of the uterus and the cervix can not stretch correspondingly, resulting in dislocation separation and bleeding. The amount of bleeding at the first time is usually not much, and occasionally there are cases with large amount of bleeding at the first time.

matters needing attention

Therefore, for pregnant women, in order to do a good job in the prevention of right placenta previa in the second trimester of pregnancy, it is necessary to have the prenatal examination on time, because the prenatal examination can check out many aspects of the disease, so that everyone can make a decision in advance, which is of great significance for pregnant women and children.