Pregnancy is an important event for a family and should not be neglected, and regular pregnancy tests should not be missed. In the third trimester of pregnancy, the doctor found that the placenta is low, so what effect does this have on the development of the fetus? I believe this is the most important question for pregnant mothers to understand. It is a kind of placenta praevia, which is divided into three types: complete placenta praevia, partial placenta praevia and borderline placenta praevia. The main effect of placenta praevia on the fetus is that it is prone to bleeding before delivery, which can be complicated by preterm labor, stillbirth and intrauterine death if the bleeding is heavy. This is something we can’t tolerate, but we also want to know, does a low placenta necessarily lead to such problems? The answer is not necessarily. If a pregnant mother finds a low placenta before 28 weeks of pregnancy, there is no need to worry too much. The placenta may move up or stay the same as the pregnancy progresses. If the placenta is still low at 28 weeks, it is considered placenta praevia, which is more dangerous and can lead to complications of preterm labor, stillbirth and intrauterine death. Therefore, in the third trimester of pregnancy, if the placenta is found to be low, you need to do the following: 1. When the placenta is found to be low, it is best to recuperate, lie down at home and do not work and bend over. Be gentle in your movements, generally the position of the placenta is changing during pregnancy. Pay more attention to the examination, about 5 months in to do ultrasound. 2, if the placenta has been low, easy to preterm delivery. And the condition should be closely observed, if there is a lot of bleeding, repeated bleeding, or when labor is already approaching, we should consider terminating the pregnancy according to the situation. 3, usually eat more nutritious things, try to eat a variety of food, eat more high protein quality protein food eat more vegetables and fruits, do not drink coffee, but also quit smoking and alcohol. Ensure 2000ml of water every day. 4, pay attention to rest, avoid overwork, do not force too much when changing the position, including when the bowels do not force too much. Avoid constipation and sexual intercourse. Go to the hospital immediately if you find bleeding.