Tailbone

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The tailbone (coccyx) is the small bone at the bottom of the spine. It is attached to the triangular-shaped sacral bone above it.

The tailbone is often injured when people fall and land on their buttocks. It usually heals on its own over time.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.