Dandruff is a mild form of seborrheic dermatitis. It occurs when small bits of dry skin flake off the scalp. Dandruff isn’t contagious, nor is it typically a symptom..

Dandruff is a mild form of seborrheic dermatitis. It occurs when small bits of dry skin flake off the scalp. Dandruff isn’t contagious, nor is it typically a symptom..