The most common causes of tail root pain are bad habits, trauma, lumbar disc herniation, sacrococcygeal fasciitis, local deformities, etc. If the symptoms persist, it is recommended to seek timely medical treatment. 1. Bad habits: due to the sacrococcygeal muscles and other soft tissues are less, if the patient is sedentary for a long time, the local area may be subjected to compression and edema, which in turn produces pain. 2. Trauma: If the patient has a history of fall or impact in the sacrococcygeal area, it may cause soft tissue injury, which in turn causes pain. 3. Herniated lumbar disc: the herniated lumbar disc compresses the surrounding soft tissues, which may cause pain in the lumbar and sacrococcygeal areas. 4. Sacrococcygeal fasciitis: mainly related to repeated wear and tear and trauma to the lumbosacral fascia, which is a kind of sterile inflammation, and when the inflammation is acute, it will cause pain. 5. Local deformity: some patients may have congenital deformity at the sacrococcygeal area, and the deformity may cause high tension in the muscles or ligaments, which in turn produces chronic pain. Causes of tail root pain is more, may also be related to scoliosis, urinary stones, fatigue fracture and other diseases, if the rest did not relieve, it is recommended to promptly go to the hospital to find out the cause of the disease, by the doctor targeted for treatment, usually to avoid long standing, sedentary, and develop good living habits.