Eight months of pregnancy is a late stage of pregnancy, and sexual intercourse is strictly prohibited. The late pregnancy coexistence of placental abruption, vaginal infections lead to newborn infections, etc., will endanger the life of the fetus, need to be strictly prohibited. 1. Placenta abduction: eight months belonging to the late stage of pregnancy, pregnant women’s stomach is larger, if sex may lead to abdominal pressure, pressure on the fetus, serious cases will appear premature abduction of the placenta, mechanical external forces lead to the normal position of the placenta from the wall of the uterus stripped, serious cases will endanger the life of the fetus. 2. Vaginal infection leading to neonatal infection: sex without good local hygiene care, leading to vaginal infection, involving the amniotic membrane leading to early rupture of the water, leading to intrauterine infection of the fetus, the occurrence of neonatal pneumonia increased the chances of endangering the life of the fetus. During pregnancy, you need to standardize the care, you need to develop a good lifestyle and diet, actively cooperate with the doctor to carry out regular obstetric examination, and you need to pay attention to the protection in daily life, follow the doctor’s instructions, to avoid the emergence of critical situations.