Coccydynia is a pain in your tailbone or coccyx, the last bone in your spine. It is not considered to be a serious condition. You could get Coccydynia if you had an accident or injury, such as a fall. In most cases, Coccydynia improves over a few weeks or months, but it can last longer and affect your mobility. https://www.thespineandrehabgroup.com/coccydynia