There are no clinical statistics for the duration of bleeding in those who are found to have complete placenta previa at thirty weeks of pregnancy. Complete placenta praevia bleeding is more frequent and heavy, which may lead to maternal shock, fetal distress or even death. Therefore, as soon as it is detected, it should be admitted to the hospital for treatment. Complete placenta previa is when the placental tissue covers the entire endocervical opening. Due to frequent bleeding and relatively heavy bleeding, if no treatment is taken, it will threaten the life of the pregnant woman and the fetus, so it is not something that can be left unattended. Those with complete placenta previa accompanied by bleeding at 30 weeks of pregnancy should be hospitalized. If the bleeding is particularly heavy, the pregnancy should be terminated immediately. Complete placenta previa is a very serious obstetric complication that pregnant women and their families must take seriously.