Placental implantation is most dangerous during late pregnancy and delivery, usually depending on the extent and depth of implantation, and may cause maternal postpartum hemorrhage during labor. Placental implantation is due to poor local endometrial environment and the placental villi tissue at the site of placental implantation invades the myometrium in order to obtain more nutrients. The symptoms of placenta implantation are very obvious at about 9 months of age, and it is prone to placenta praevia, placental abruption leading to hemorrhage and inducing preterm miscarriage, fetal abortion or stillbirth. Placenta implantation in the uterus can also lead to hemorrhage during labor and delivery of the placenta. If you find placenta implantation in the middle of pregnancy, you must pay attention to bed rest, avoid sitting or standing for a long time, do not exercise strenuously, avoid intercourse and collision with the abdomen, and go to the obstetrics and gynecology department of the hospital in time to improve relevant examinations and actively receive fetal preservation treatment when you find irregular vaginal bleeding or abdominal pain. In addition, if placental implantation causes fatal postpartum bleeding, the uterus needs to be removed at this time.