A low placenta in the 4th month of pregnancy generally does not require special treatment as long as the fetus develops normally. As the months of pregnancy increase, the lower part of the uterus gradually forms, which will lengthen the distance between the endocervical os and the edge of the placenta, and the placenta that was originally attached to the lower part of the uterus can move up with the uterus, and most of the placenta will change to a normal position. Pregnant women can follow the doctor’s instructions to increase the frequency of labor checkups, and regularly observe the movement of the placenta, which usually rises to a normal position by the 28th week of pregnancy. At the same time, pregnant women should pay attention to reduce daily activities, avoid coitus and strenuous exercise to avoid vaginal bleeding. Pay attention to balanced nutrition in diet, eat more food rich in high quality protein, such as eggs, chicken, beef, etc., and eat more fresh vegetables and fruits to promote the healthy growth of the fetus. If the placenta is still in a low state after 28 weeks of pregnancy, it is usually difficult to grow up again, at this time, consider the presence of placenta praevia. If there are symptoms of vaginal bleeding, you need to be treated with medication to preserve the fetus, and when it is not effective, you can choose cesarean section to terminate the pregnancy according to the condition of the fetus to prevent the occurrence of hemorrhage.