At 23 weeks of pregnancy the placenta is in a low position and is not amenable to human intervention, and if there is no intravaginal bleeding, no special treatment is usually required. Until 30 weeks of pregnancy, the placenta may grow on its own, but it is not possible to intervene artificially. At present, you can promote the growth of the placenta by resting properly and reducing the amount of activity. 1. Appropriate rest: avoid overwork during rest. 2. Reduce the amount of exercise: Eliminate all strenuous exercise, such as fast running, jumping and so on. Because these movements may lead to bleeding placenta praevia or even placental abruption. Pregnant women should also avoid sex or using abdominal pressure, etc., maintain a comprehensive diet and try to maintain personal emotional stability, because anxiety can affect the development of the pregnancy process. Pregnant women who find that the placenta is in a lower position must do a good job of self-care. If internal vaginal bleeding is found, they should go to the obstetrics department of the hospital in time and take reasonable treatment measures under the guidance of the doctor.