A person's entire body surface continuously sheds dead skin cells. The skin itself sheds every twenty-four days. Dandruff, the shedding of dead skin cells from the scalp at an excessive rate, is the result of the normal growing process of the skin cells of the scalp. Dandruff is seasonal. It is most severe during the winter and mildest during the summer.

The most common symptom of dandruff is scaling and flaky skin on your head. Itching is also occasionally present.. A doctor should be consulted if redness is present, or if scaling occurs on parts of the body other than the scalp.

Causes of Dandruff include : Excessive use of hairsprays and gels, improper use of hair-coloring products or excessive use of electric hair curlers, cold weather and dry indoor heating, tight fitting hats and scarves, infrequent shampooing of the hair or inadequate rinsing or even stress, anxiety and tension.

Dandruff can be treated with shampoo, creams and special soaps that are available at the drugstore or by prescription.