Complete placenta previa becomes increasingly unsafe with each passing week of pregnancy. Complete placenta previa, also known as central placenta previa, is the more severe form of placenta previa in which the placenta completely covers the inner cervical opening at 28 weeks of gestation. It is unsafe throughout the pregnancy and requires close monitoring. The risk of complete placenta previa increases with the weeks of pregnancy. In late pregnancy, complete placenta previa often presents with recurrent vaginal bleeding that is painless and unprovoked. The management of complete placenta previa needs to be evaluated in the context of maternal bleeding, fetal gestational week, the presence of maternal shock, and the intrauterine condition of the fetus. If the general condition of the pregnant woman is good, the amount of vaginal bleeding is small, and there is no need for emergency delivery, the pregnancy can be prolonged as much as possible under the premise of ensuring the safety of the mother and the child, so as to improve the viability of the fetus. If the bleeding is large or even shock occurs, the pregnancy should be terminated immediately in order to save the life of the pregnant woman without considering the gestational week of the fetus. If painless and unprovoked vaginal bleeding occurs repeatedly in the late stage of pregnancy, the pregnant woman should go to the hospital in time to determine whether it is placenta praevia and the type of placenta praevia as early as possible, and to make the correct treatment.