Placental abruption doesn’t usually occur with any signs, once the symptoms are shown outwardly, it is already in the stage of abruption. There are usually no obvious signs before placental abruption, but pregnant women who suffer from hypertensive disorders of pregnancy, chronic kidney disease, sudden trauma, artificial rupture of membranes, etc., need to be alert to the occurrence of placental abruption. If these conditions exist and symptoms such as abdominal pain and vaginal bleeding suddenly appear in late pregnancy, the possibility of placental abruption needs to be considered. Placental abruption may lead to serious consequences, especially if the detached area of the placenta is large and bleeding is heavy, etc., the condition will develop more rapidly, and the threat to the mother and child will be greater. Therefore, it is important to strengthen the management of pregnant women with hypertensive disorders of pregnancy, chronic hypertension, and renal diseases during pregnancy. Avoid abdominal trauma to prevent placental abruption.