Girls with tailbone pain, there are several common reasons: First, injury, in sports or daily life due to the injury mechanism of sitting, resulting in the tailbone and hard objects for impact, resulting in tailbone injury, serious tailbone fracture, generally have a history of sitting injuries, you can go to the hospital for examination, X-ray film for diagnosis. Secondly, chronic strain injury of tailbone, due to long time sitting, such as work, study is heavy, sit for a long time, tailbone and hard seat produce long time friction, strain, resulting in chronic strain inflammation of tailbone and thus pain. Thirdly, for women, some cases of pelvic inflammatory disease can also lead to distension and falling sensation in the tailbone area, which is also thought to be pain in the tailbone.