WHAT IS IT?
Coccydynia or coccygodynia is pain in or around the coccyx (tailbone), the bony end point of the spine. It is a very important structure as it serves as an attachment for several ligaments, tendons and muscles. The deep pelvic floor muscles insert on the anterior surface of the coccyx, and the largest gluteal muscles (buttock) originate partly on its posterior surface. In the sitting position, the coccyx becomes a weight-bearing structure along with the two ischial tuberosities (sitting bones).