After pregnancy, if the placenta is low, lie flat. When lying flat, you should raise your hips properly, which is conducive to the upward movement of the placenta. Under normal circumstances, the placenta can move before 28 weeks of pregnancy and will not be fixed. Reclining is beneficial to the activity of placenta and improves the phenomenon of low placenta position. If the placenta position is basically fixed after 28 weeks of pregnancy, raising the buttocks will not play a very good role. Usually try not to stand or squat for a long time to avoid the possibility of miscarriage or premature delivery caused by placental and uterine dissection. If you stand for a long time, it will lead to marginal placental abruption, which will easily cause bleeding and affect fetal growth.