Home Coccyx (aka Coccydynia)

The coccyx, also known as the tailbone, is a small, triangular bone resembling a shortened tail located at the bottom of the spine. It is composed of three to five coccygeal vertebrae or spinal bones.

Tailbone pain — pain that occurs in or around the bony structure at the bottom of the spine (coccyx) — can be caused by trauma to the coccyx during a fall, prolonged sitting on a hard or narrow surface, degenerative joint changes, or vaginal childbirth.

A coccyx injury results in pain and discomfort in the tailbone area (the condition is called coccydynia). These injuries may result in a bruise, dislocation, or fracture (break) of the coccyx. Although they may be slow to heal, the majority of coccyx injuries can be managed with cautious treatment.

  • Severe localized pain and tenderness may be felt in the tailbone area.
  • If the injury is traumatic, a bruise may be visible in this area.
  • The pain is generally worse when sitting for prolonged periods of time, or with direct pressure to the tailbone area.
  • Bowel movements and straining are often painful.
  • Some women may experience pain during sexual intercourse.
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