Sacral pain may be caused by aseptic inflammation of the sacrococcygeal area, trauma, sacral lesions and other reasons. 1. Sacrococcygeal aseptic inflammation: including sacroiliac arthritis caused by degeneration, sacroiliac arthritis caused by ankylosing spondylitis, aseptic inflammation of lumbosacral vertebral ligaments, etc. Stimulation of inflammatory factors can cause patients to experience symptoms of sacral pain. 2. Trauma: direct or indirect stress can lead to sacral and lumbosacral spine ligament injuries, and patients can have sacral pain, and in severe cases, incontinence and other symptoms can occur. 3. Sacral lesions: sacral tumors, sacral tuberculosis and other pathological changes, causing bone and structural damage, patients may experience sacral pain. Sacral pain has many causes, and it is suggested that patients should consult the hospital in time, complete the relevant examinations to clarify the cause of the disease and then carry out further treatment.