The common causes of pain on both sides of the pelvis are mainly the following: First, after strenuous activity in young and strong patients can cause a large amount of lactic acid metabolism in the body, which accumulates at the pelvis and causes soreness and pain. Local massage, physical therapy, warm water baths can be used to improve local blood circulation and reduce the pain on both sides of the pelvis. Second, if the patient accidentally falls while riding a bicycle, it can cause fracture at the pelvis and cause pain. Drug treatment cannot reduce the patient’s severe pain. It is necessary to improve the local X-ray or CT examination to clarify the severity of the fracture, and if necessary, go to the orthopedic department of the hospital as soon as possible to perform surgery. Third, elderly patients with osteoporosis often have pelvic pain due to calcium loss in the body. It is possible to improve bone density measurement and supplement appropriate amount of calcium and vitamin D to avoid further loss of calcium in the body and relieve the pain and discomfort of the pelvis.