The common causes of pain on both sides of the pelvis are mainly the following: First, after strenuous activities of young and strong patients can cause a large number of lactic acid metabolism in the body, accumulating in the pelvis, causing soreness. You can improve local blood circulation and reduce the pain on both sides of the pelvis through local massage, physiotherapy and warm water bath. Second, if the patient falls accidentally while riding a bicycle, it can cause fractures at the pelvis and cause pain. Drug treatment can not reduce the pain, need to improve the local X-ray or CT examination, to clarify the severity of the fracture, if necessary, as soon as possible to the hospital orthopedic consultation, surgical treatment. Third, osteoporosis elderly patients, often because of the loss of calcium in the body and pelvic pain. Bone densitometry can be improved, and appropriate amounts of calcium and vitamin D can be supplemented to avoid further loss of calcium and relieve pelvic pain.