Does the human body contain any truly useless parts? Arguably, yes — but they might not be the ones you assume. Some body parts, like the male nipple, arguably serve no useful function. But others, ...

Coccydynia is the medical term for tailbone pain. Your tailbone, or coccyx, is at the bottom of your spine, and it's made up of three to five fused vertebrae (small bones that support your spine).

The tailbone is a remnant of the tail possessed by our primate ancestors. Though humans no longer need tails, they are still present in month old embryos and there are over 100 recorded cases of ...