Pain on movement occurs when there is a separation of the pubic symphysis and is usually more common in late pregnancy or after childbirth. The reason why it is more likely to happen during pregnancy is that the level of progesterone in the body increases during pregnancy, and the enlarged uterus presses on the pubic symphysis, so there will be a moderate separation. Women can prevent this by taking proper rest, eating calcium-rich foods, and not standing for too long, and it may gradually return to normal after delivery. If the separation of pubic symphysis is more than 2cm, the abdominal band can be given in time for pressure bandage after delivery. If the effect of physical therapy such as compression bandage is not good, only surgical treatment can be carried out. Therefore, during pregnancy, we must pay attention to increase nutrition, avoid exertion, and if there is any discomfort, we need to carry out symptomatic treatment in time.