Dandruff is the shedding of dead skin. cells from the scalp. As skin cells die a small amount of flaking is normal. Some people however experience an unusually large amount of flaking either chronically or as a result of certain triggers.
Dandruff is a common scalp disorder affecting almost half of the population at the post -pubertal age and of any gender. It often causes itching. The severity of dandruff may fluctuate with season and it often worsens in winter.