A coccyx fracture is a broken tailbone. The coccyx is the lowest part of the backbone or spine. It is small and shaped like a triangle. The bone curves gently from the end of the spine into the pelvis.

The Coccyx
Nuclus factsheet image
Copyright © Nucleus Medical Media, Inc.

Coccyx fracture is caused by trauma. Trauma may be caused by:

  • Falls
  • Childbirth, which may result in a newborn breaking the mother's coccyx

Fractures may may also occur during straining or friction, such as with rowing or bike riding.