The pain in the middle bone of buttock groove may be related to sacrococcygeal fasciitis, coccygeal fracture and so on, which can be treated with physical, medication, surgery and so on. 1. Sacrococcygeal fasciitis: the middle bone of the buttock groove is considered to be the sacrococcygeal area, when the sacrococcygeal fascia inflammation occurs, there can be pain when sitting, you can give infrared therapy, extracorporeal ultrasound and other physical therapy, celecoxib and other medications, and when the condition is serious, you can undergo surgical procedures, such as fascia laxation. 2. Tailbone fracture: when the patient is impacted and other traumatic stimuli, can lead to tailbone fracture, so that the patient appeared to sit in the middle of the buttock groove bone pain symptoms, early can be ice packs, hot compresses, application of ibuprofen and other drug therapy, serious condition, surgical removal of the tailbone treatment. The pain in the middle of the buttock groove can be caused by a variety of reasons, it is recommended to go to the hospital in a timely manner, improve the relevant examination and treatment. All of the above drugs should be applied under the guidance of a physician, and should not be used without authorization.