Coccyx pain (Tailbone pain)
Tailbone pain is centered at the very bottom of your spine, right above your buttocks, where this multi-segmented bone sits. The tailbone is small, but it does have a few important jobs. It helps to stabilize you when you sit, and many tendons, muscles, and ligaments run through the area.
sitting on a hard bench or other uncomfortable surface for a long period of time
falls and other traumas can bruise, dislocate, or break your tailbone
joint damage from repetitive motions or general wear and tear from aging
if you’re overweight. But if you lose the weight quickly, you’ll lose the padding that protects your tailbone and you may be more likely to injure it
Tailbone pain can feel dull and achy but typically becomes sharp during certain activities, such as sitting, rising from a seated to a standing position or prolonged standing. Defecation and sex also might become painful. For women, tailbone pain can make menstruation uncomfortable as well.