The pubic symphysis is located at the lowermost part of the abdomen. When a normal pregnant woman is lying down, the bony structure that can be touched at the bottom of the abdomen is a part of the pubic bone, and the intersection of the two sides of the pubic bone is connected by fibrocartilage, which is the pubic symphysis. If there is a serious separation of the pubic symphysis during pregnancy, pregnant women will feel pain. Normally, the fibrocartilage connection of the pubic symphysis in women is 4-5 mm, and after pregnancy, the distance of the pubic symphysis increases to accommodate pregnancy and delivery. When the pregnancy is late, with the enlargement of the uterus and the descent of the fetal head, it will cause further separation of the pubic symphysis. Most pregnant women do not experience pubic symphysis pain after mild separation of the pubic symphysis. However, some pregnant women will experience excessive separation of the pubic symphysis. When the pubic symphysis is excessively separated, it can cause pain in the area of the pubic symphysis in pregnant women. The location of the pubic symphysis pain is located in the lowermost part of the abdomen in the area of the pubic symphysis. It is important to note that separation of the pubic symphysis is clinically common and can only be treated with rest to reduce the discomfort associated with activity and without special management. In these patients, separation of the pubic symphysis can also occur after another pregnancy, triggering pain. Post-pregnancy pain in the pubic symphysis is a common symptom, and most pregnant women can relieve the pain by resting, while a small percentage of them need to terminate the pregnancy as soon as possible because the pain is more severe and cannot be tolerated.