Bleeding in the eighth month of pregnancy is not normal and may be related to preterm labor, placental abruption, placenta praevia and so on. 1. Preterm labor with precocity: the pregnant woman will experience contractions in advance, resulting in separation of the fetal membranes from the uterine wall, and vaginal bleeding occurs, similar to the sighting of red before full-term delivery. 2. Placental abruption: The separation of the placenta from the uterine lining may lead to localized rupture of blood vessels, resulting in vaginal bleeding. 3. Placenta previa: the placenta attaches to the lower part of the uterus and even covers the endocervix, which is also prone to antepartum hemorrhage in late pregnancy. Bleeding in the eighth month of pregnancy can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions to carry out relevant examinations, with the help of the doctor to clarify the cause of the disease, and targeted treatment or treatment.