Causes of tailbone pain include ligament strain, fracture dislocation, inflammation, lumbosacral damage, and tumor. 1. Ligament strain: long-term poor sitting posture, hip falls, sprains, impact injuries and many other reasons, may damage the sacrococcygeal ligament, resulting in symptoms of coccygeal pain. 2. Fracture dislocation: it is mostly seen in the case of falling from a high place, heavy object impact, etc., which can also lead to the fracture dislocation of the coccyx and result in pain. 3. Inflammation: Inflammation of the ligament and fascia of the tailbone, inflammation of the lower sacral nerve roots, degenerative arthritis of the sacrococcygeal joints and so on. In addition, when the infection in the pelvis involves the pelvic floor muscles, it can also show the symptoms of tailbone pain. 4. Lumbosacral damage: such as lumbar spondylolisthesis compressing the dura mater and nerve root, and large central disc herniation, etc. can also cause the symptoms. 5. Tumor: chordoma, chondrosarcoma, chondrosarcoma, hemangioblastoma, etc. occurring in the sacrococcygeal region can have the symptom of pain in the coccyx. When pain occurs in the tailbone and cannot be relieved after sufficient rest, it is recommended to consult a doctor in time to clarify the cause of the disease and receive targeted treatment.