The bone on top of the hip is called the tailbone, which may cause tailbone discomfort if it is normally sedentary for long periods of time, traumatic impact or problems with the lumbar spine. The tailbone is an important structure of the pelvis. Due to the different body structure and skeletal structure of individuals, the shape of the tailbone may be different, and the tailbone of individuals is narrower and longer. If there is pain in the tailbone, it is mainly considered to be caused by chronic strain of local ligaments or degenerative lesions of small joints. The general treatment is mainly to choose local physiotherapy, hot compresses, acupuncture, massage, to promote local blood circulation, can help the ligament and muscle function recovery. Usually do not sit for a long time, to appropriate activities, pay attention to keep warm. Maintain good sitting and standing posture, and as you grow older, take appropriate calcium supplements.