causes of tailbone pain when sitting
1 Certain activities that put prolonged pressure on the tailbone, such as horseback riding and sitting on hard surface for long periods of time, may cause the onset of coccyx pain. 2  Tailbone pain due to these causes usually is not permanent, but if the inflammation and symptoms are not managed, the pain may become chronic.
1 Tailbone pain due to these causes usually is not permanent, but if the inflammation and symptoms are not managed, the pain may become chronic. 2  Tumor or infection. 3  Rarely, coccydynia is due to a tumor or infection in the coccyx area that puts pressure on the coccyx.