Most of the time, tender scalp lumps tend to be benign masses, especially in teenagers and young adults. These benign scalp masses include sebaceous cysts and lipomas (benign fatty tumors). However, it is impossible to make a specific diagnosis over the Internet, and so you should have your family doctor take a look at this lump. Hopefully, it will turn out to be a benign lesion.

Robert A. Wascher, MD, FACS