I have pain in my tail bone - not every day - but it will "flare up" on occasion. Should I be concerned?
I forgot to mention that coccydynia appears to be more common in women perhaps because they are more prone in misalignments in that area which puts pressure on the nerves.
Tailbone pain goes by the name of coccydynia. It can be caused by a variety of things; an injury to the area, shingles (you should see a rash, though) or some other infection, a cyst, or even sciatica. As with all cases of lower back pain in very, very rare cases it can be due to a tumor. Sometimes its impossible to isolate a cause; the area just seems to flare up for some reason.
Its often treated with anti-inflammatories, pain medications or cortisone injections to stop the inflammation. As with any painful area you should see a doctor to check it out.