Is placenta previa asymptomatic important?

summary

The first bleeding occurred later, mostly in 37-40 weeks of pregnancy or after labor, and the amount was less. In normal pregnancy, the placenta adheres to the anterior, posterior and lateral walls of the uterine body. If the placenta is attached to the lower uterine segment, covering, partially covering or very close to the internal orifice of the cervix, so that the position of the placenta is lower than that of the fetus, it is called placenta previa. Is placenta previa asymptomatic important? Now let me tell you something.

Is placenta previa asymptomatic important?

Painless recurrent vaginal bleeding is the main symptom of placenta previa in late pregnancy or labor, occasionally in 20 weeks of pregnancy. Vaginal bleeding occurs sooner or later, the number of recurrent attacks, the amount of bleeding and the type of placenta previa has a great relationship.

The first bleeding time of complete placenta previa is often early, about 28 weeks of gestation. The number of repeated bleeding is frequent and the amount is large. Sometimes a large amount of bleeding can make the patient fall into a state of shock; The first bleeding of marginal placenta previa occurred later, mostly at 37-40 weeks of gestation or after labor, and the amount was less;

The first bleeding time and bleeding volume of partial placenta previa were between the two. Each contraction after labor, the lower uterine segment upward traction, bleeding is often increased. In patients with partial or marginal placenta previa, if the fetal presentation can drop rapidly after rupture of membrane, the placenta will be compressed directly, and the bleeding can be stopped. Rupture of membranes is beneficial to the compression of placenta by fetal presentation. As a result of repeated or massive vaginal bleeding, maternal anemia can occur, the degree of anemia is proportional to the amount of bleeding, severe bleeding that is into shock, fetal hypoxia, distress, resulting in death.

matters needing attention

The treatment principle of placenta previa is to control bleeding, correct anemia, prevent infection, and correctly choose the time and method of ending delivery. In principle, maternal safety is the main factor. On the premise of maternal safety, premature birth should be avoided to reduce the mortality.