DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Dandruff. Close-up view of the scalp of a 50 year- old man suffering from severe dandruff. White flakes are seen on the skin of the scalp. Severe dandruff is usually caused by seborrhoeic dermatitis, an itchy scaly rash which may occur on the scalp, face, chest and back. The oily appearance of the hair and yellow, moist dead skin scales are due to the overproduction of sebum, the secretion of the sebaceous glands that reaches the skin surface through small ducts that lead into the hair follicles. Treatments include anti- dandruff shampoos or corticosteroid creams.
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