If you feel pain in the perineum after walking in late pregnancy, it can be considered that the pain in the perineum is caused by the increase of the fetus and the increase of the uterus that presses on the inferior vena cava and causes obstruction of the return flow. If you feel pain in the pubic symphysis, it should be the pain caused by the pressure on the pubic symphysis after the fetal head has entered the pelvis. In this case, you should try to rest, do not walk for a long time, and do not stand for a long time, which will aggravate the pain, usually pay attention to bed rest, and choose the left side of the bed as the main position during rest, which can reduce the pressure of the right uterus on the abdominal aorta and reduce the pain. If the pain is usually more serious, you can wash with warm water to keep the local cleanliness and avoid inflammatory infections.