What Can Cause Tailbone Pain?
Sacroiliitis
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Sacroiliitis is a condition that causes inflammation to the sacroiliac joints. There are two sacroiliac joints, located at the point where the pelvis connects to the lower spine. For some individuals, only one joint is affected, while others have symptoms in both joints. Sacroiliitis isn't an inflammation of the coccyx, so it's not related to coccydynia. However, it can cause pain in the tailbone. The pain may also radiate through the lower back, buttocks, and one or both legs. If individuals stand for prolonged periods of time or climb stairs, they may find the pain becomes worse. It's often difficult to diagnose sacroiliitis because the symptoms can be mistaken for coccydynia or other conditions that cause lower back and tailbone pain. Sacroiliitis has been linked to certain diseases that lead to inflammation and arthritis in the spine.
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