The posterior placenta is a manifestation of the placenta, which can be on the posterior wall, or on the anterior or lateral wall. After 28 weeks, if the placenta covers the cervical opening or is near the cervical opening, it is an abnormal condition. Many people find the placenta on the posterior wall during the check-up and mistakenly think that it is abnormally positioned, which is actually wrong. Usually, the uterus is divided into several parts, the part near the lumbar spine is posterior, the part near the abdominal wall is anterior, and the rest of the middle part on both sides is lateral, which are normal. The position of the placenta is mainly determined by ultrasound examination, other obstetric examinations cannot be determined, and those in the anterior wall may be prone to murmurs when listening to the fetal heartbeat. The position of the placenta does not affect the growth and development of the fetus, but the presence of placenta praevia may lead to painless vaginal bleeding in the late pregnancy. Be careful not to strain, not to have intercourse, go to the hospital for examination whenever there is bleeding, and if necessary, you need to be hospitalized to keep the fetus. It is normal to check the posterior wall of the placenta, so you do not need to bother about the position of the placenta. Take a reasonable diet, pay attention not to eat cold, spicy and stimulating food, move properly to help the fetus grow and develop, keep your mood relaxed and go to the hospital for regular obstetric checkups.