Most scabs on the scalp aren’t cause for concern. They may be caused by exposure to an irritant or a mild skin condition, and either heal on their own or with over-the-counter (OTC) treatments.

An 81-year-old woman was referred for evaluation of a growth on her scalp. On physical examination, a crusted papule on a base of dried blood is noted. An 81-year-old fair-skinned woman was referred ...