Women often encounter some abnormal situations during pregnancy, and placenta previa is a common phenomenon during pregnancy, which can be quite dangerous for pregnant women. The occurrence of placenta previa during pregnancy is mainly due to the influence of smoking or drugs, and may also be caused by multiple pregnancies. So what is the risk of placenta previa?
Placenta previa is a common problem during pregnancy, and its most typical symptom is the unexplained and painless recurrent vaginal bleeding that occurs during late pregnancy or labor. The amount of bleeding can be large or small, and in severe cases, it can even cause fatal shock to the pregnant woman, which has a significant impact on the life of the pregnant woman and the fetus.
Pregnant women with placenta previa during pregnancy can be classified into various situations based on the symptoms and onset time. If complete placenta previa bleeding occurs too early, the first bleeding usually occurs around 28 weeks of pregnancy, and the amount of bleeding is large, resulting in a higher risk. Marginal placenta previa usually occurs in late pregnancy or after delivery, with less bleeding and milder symptoms.
In addition to the two types of placenta previa mentioned above, there is also partial placenta previa, whose main bleeding time, amount of bleeding, and frequency of repeated bleeding are usually between the above two. If this situation occurs during pregnancy and there is a large amount of bleeding, it can seriously cause intrauterine distress to the fetus, and even lead to the risk of fetal hypoxia and death.
