Dandruff:
Information for adults

Dandruff, also known as seborrhea, is a common non-contagious condition of skin areas rich in oil glands (the face, scalp, and upper trunk), marked by flaking (overproduction of skin cells) and sometimes redness and itching (inflammation) of the scalp, varying  in severity from mild flaking of the scalp to scaly, red patches. The normal skin yeast, Pityrosporum ovale, lives in oil-rich skin regions and plays a role in this condition. Dandruff may be worse with stress, winter, and infrequent shampooing. Although there is no "cure" for dandruff, control is usually possible with medicated shampoos.