My husband just noticed a small ball behinde his ear he has had them in the past when he was young but about two days ago they came back. They only hurt when he touches them. The balls are very small, a little bit bigger then the size of a pea. What can it be?
HI. This is one of the most common concerns seen on this forum. These are lymph nodes and are due to infection of the scalp, even a minor trauma can cause this. These are usually self limiting and may occasionally need treatment. If you are still worried, you can go for FNAC test (fine needle Aspiration cytology done by pathologist. )