What is the main symptom of placenta previa?

summary

The etiology of placenta previa is not clear in the medical community. However, studies have found that it may be related to endometrial lesions, excessive placental area or delayed development of fertilized eggs. The placenta in normal position should be attached to the body of the uterus, far away from the cervix. If it is attached to the cervix or close to the mouth of the uterus, it is called placenta previa. What is the main symptom of placenta previa? Let's talk about it.

What is the main symptom of placenta previa?

Clinical manifestations of placenta previa: abdominal examination. The abdominal wall is soft, without tenderness, the uterine tension is not big, the uterine size is consistent with the month of pregnancy, and the fetal position is clear. However, because the placenta is attached to the lower uterine segment, the fetus is first exposed into the basin, so it is first exposed and floats, and the fetal position is abnormal. Sometimes, the placenta murmur can be heard at the upper edge of the pubic symphysis.

Clinical manifestations of placenta previa: postpartum hemorrhage and infection. Due to the placenta attached to the lower uterine segment, postpartum impact on uterine contraction, cervical blood rich, fragile tissue, easy to tear during delivery, resulting in postpartum hemorrhage. Maternal resistance is reduced, combined with surplus stripping away from the face close to the outside of the cervix, bacteria easy to uplink infection.

Clinical manifestations of placenta previa: painless recurrent vaginal bleeding in late pregnancy. Often without any inducement, sudden occurrence is the main feature. The time of vaginal bleeding, the number of recurrent attacks and the amount of bleeding are related to the type of placenta previa. Complete placenta previa bleeding about 28 weeks of gestation, occasionally occurred in 20 weeks of gestation, frequent, large amount, sometimes a large amount of bleeding can make the patient into a state of shock. The first bleeding of marginal placenta previa occurred later, even in labor, the amount of bleeding was less. The bleeding of partial placenta previa is between the two.

matters needing attention

If expectant therapy is ineffective, massive hemorrhage or small amount of bleeding occurs, but the pregnancy is near full term or in labor, termination of pregnancy should be considered. If you have the above symptoms, you should pay special attention and see a doctor in time.