Why is there dandruff in summer?

Dandruff, medically known as pityriasis scalp, is a skin disease caused by Malassezia (a fungus). The proliferation of Malassezia on the scalp causes excessive proliferation of the stratum corneum of the scalp, which makes the stratum corneum cells fall off abnormally in the form of white or gray scales, which is dandruff. The causes of dandruff are usually divided into physiological and pathological.

Dandruff adheres to the scalp surface and hair, and falls off in large quantities. This seemingly small problem often puzzles people's work, life and social life.

When dandruff appears, it is often accompanied by symptoms such as scalp inflammation and scalp itching. If proper methods are not taken to treat dandruff, the disease may occur periodically, recurrently or continuously, and in severe cases, it may lead to scalp hair follicle damage and permanent hair loss.