The pubic bone is a weight-bearing bone. Clinically, the pubic bone is a very important part of the human pelvic ring, inside the pelvis, left and right, connected to the human spine through the sit bones and iliac bones, and is an important part of supporting the human body, and is an important structure for bearing the weight and power transmission of the upper and lower limbs. If the pubic bone has problems, the entire pelvic ring begins to be unstable, the body can not complete the transmission of force, if the human pelvis has been engaged in long-term weight-bearing, easy to cause serious damage to the muscle groups attached to the pubic bone, there will be continuous pain. Women in late pregnancy due to the development of the fetus more and more weight, to the pelvis will also bring more and more pressure, thus triggering a series of pain, pregnant women should pay more attention to rest, to ensure adequate sleep, do not engage in physical labor, overwork, serious will cause the pubic bone separation.