Hello. I have noticed in the last several months or more that there is a bony knob to the right of the central occipital protuberance in my skull. It is hard, not squishy, so I m guessing it s bone, and it doesn t hurt. However, it seems to be slowly growing in size. Should I be concerned?
In my opinion, normal occipital protuberance is present due to external occipital protuberance. In your case if another bony prominence is present then it can be bony growth or some local scalp swelling. If it is enlarging then you should have a CT scan head with bone window. Associated bony pain, headache, other symptoms may point to some serious disease otherwise nothing to worry. Wish you good health.