A member asked:

What is that hard pea-sized bump in the middle of the back of my head? i don't get headaches. it doesn't hurt when i press on it. it feels like bone. it doesn't move. i don't get blurry vision. so what is it?

3 doctors weighed in across 2 answers
Dr. Ty Chen answered

It : It might be a sebaceous cyst which is benign. They can be removed under local anesthesia by most general surgeons or possibly your primary care physician if they bother you in any way. You should of course get it examined by a physician first.

Answered 10/3/2016

5.3k views

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Dr. Keshav Narain answered

Specializes in Retinal Surgery

E.O.P.: If it is immobile, it is probably the external occipital protuberance of the occipital bone. This is the insertion point for the trapezium and ligamentum nuchae. It is almost exactly as you describe. Sebaceous cysts can be hard but are sometime fluctuant and are usually mobile.

Answered 4/6/2014

5.2k views

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