Can a sore tailbone be cancer?

Sore Tailbone: While it could be cancer, there are other more common causes of tailbone pain, such as pilonidal cyst or trauma. An x-ray would be a good place to start.

Chordoma rarely: Chordoma easy to miss MRI will find it if present.

See below: The tailbone or "coccyx" is the small trail of bones that connect to the end of your sacrum, and form the end of your spine. A painful tailbone can come from several things. Trauma to the tailbone which might occur with a fall. An abnormally positioned tailbone that is under stress with prolonged siting, and in very rare cases abnormal growths can occur on the tailbone.