A dermatologist an hair surgeon break down the most common causes. Skin conditions run the gamut from the benign to the more serious. A bump on the scalp could be completely harmless, indicative of ...

There you were, innocently rubbing your head or brushing your hair, when all of a sudden, ouch: You hit some kind of weird little bump and it seriously hurts. Similar to the bumps that can form on ...

Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...