Anterior placenta means that after 28 weeks of pregnancy, the placental tissue is attached to the lower segment of the uterus and the lower edge reaches or covers the endocervix, which is prone to vaginal bleeding in late pregnancy and threatens the health of mother and child. Repeated vaginal bleeding can occur during pregnancy. A small amount of bleeding can be controlled after hospitalization, while repeated brown discharge in the vagina during the recovery period indicates that the residue has not been discharged, but it is discharged after mechanization, which is old bleeding.