A member asked:

Iv had a lump at the bottom of my head on the skull for a while now should i go see my doctor. what is it and what causes it?

A doctor has provided 1 answer
Dr. William Byars answered

Specializes in Family Medicine

May be normal bone: If it's at the very back of your head, directly in the midline, it's probably a normal bony lump called the external occipital protuberance. Sometimes it takes people many years to discover they have this. If it's clearly to the right or left it may be a lymph node, and if getting bigger, should be checked out.

Answered 4/24/2015

5.3k views

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