Here’s a summary of the more common causes (and symptoms) of bumps on the scalp. Folliculitis is a skin infection caused by damage to your hair follicles. This infection can result in raised red ...

This chronic autoimmune condition leads to thickened patches of red, scaly skin, often accompanied by raised bumps. Symptoms: Silvery scales and plaques, typically on the elbows, knees, and scalp.