Premature placental abruption hemorrhage occurs in the underlying meconium of the placenta, and the hemorrhage gradually forms a hematoma, causing the placenta to detach from the uterine wall. The placenta is subjected to vascular lesions, external trauma, etc., resulting in hemorrhage in the fundus metaplasia of the placenta, which gradually forms a hematoma between the placenta and the uterine wall, causing the placenta to peel away from the uterine wall. If the area of the abruption is small and the bleeding stops when the blood coagulates, the pregnant woman’s symptoms are usually mild or asymptomatic. If the bleeding continues and the placental abruption expands, more serious consequences can occur. Placental abruption is a serious complication in late pregnancy. If the condition progresses and the bleeding continues, it may result in serious complications, such as fetal death in utero, hemorrhagic shock, disseminated intravascular coagulation, etc., which can endanger the life of the mother and the child if not treated in time. Clinically, pregnant women with symptoms of vaginal bleeding during pregnancy need to seek timely medical examination to clarify the diagnosis and deal with it under the guidance of the doctor.