The pelvis forms the base of the spine as well as the socket of the hip joint. The pelvic bones include the hip bones, sacrum, and coccyx. The hip bones are composed of three sets of bones that fuse ...

A pelvic fracture is a break in one or more of the bones in the pelvis. This includes the sacrum, coccyx, ilium, ischium, and pubis. The type of pelvic fracture a person has may depend on the trauma ...

Symptoms of tailbone cancer include pain, noticeable mass, and weakness or numbness in the lower back and legs. Cancer in the tailbone, also known as the coccyx, may be a chordoma or a cancer that has ...

From the Department of Proctology, Graduate Hospital, University of Pennsylvania, and the Department of Proctology, Temple University Hospital.

Learn more about the human tailbone and how, even though we may not have a strict need for it anymore, it still helps us with our everyday lives. Madison Dapcevich is a freelance science journalist ...

Chordomas are rare malignant bone tumors primarily involving both ends of the axial skeleton that present as destructive bone lesions with a large soft tissue mass. Chordomas were previously believed ...

The human tailbone, also known as the coccyx, is a vestigial feature, meaning it has lost its original function in the body over the course of evolution. The human tailbone is a leftover feature from ...