Increased dandruff is very common in the population, with about 50% of people suffering from increased dandruff, and it is more common in younger men and women, some of whom are very serious. Although dandruff has little effect on health, it has a significant impact on life, including aesthetic and social effects. What is dandruff Dandruff is a product of the metabolism of human head cells, which is manifested as thin flakes of dandruff in the scalp or hair, white or gray in color, scattered between the hairs. Dandruff is not a disease. Dandruff is divided into two types: physiological and pathological dandruff. Physiological dandruff is not a skin disease, while pathological dandruff is often associated with skin diseases. Physiological dandruff refers to the dry dandruff that is common in adults, and the scalp is not red or itchy. Pathological dandruff is often accompanied by some skin diseases, such as bacterial or fungal infections, psoriasis, asbestosis, seborrheic dermatitis and other skin diseases, or other physical or chemical causes such as perming and hair dyeing that damage the scalp and cause dermatitis can lead to more dandruff. How to determine whether you have increased dandruff physiologically or pathologically? 1, not only more dandruff, but also oily scalp, accompanied by itching, red scalp, hair in a bundle these may be caused by pathological factors. And what are the causes of physiological dandruff? At present, it is believed that the main causes are: Malassezia colonization (normal people have it, it is just a matter of how much), sebum secretion and genetic susceptibility. Is dandruff and itchiness contagious? If dandruff increases due to Malassezia overgrowth, it may be contagious in the case of shared combs. How to get rid of dandruff Physiological attention can be paid to the use of anti-dandruff products, Celebrex, selenium disulfide, zinc pyrithione, etc. …. Should I avoid eating? Avoid eating too much spicy, greasy and sweet food and dairy products. The diet structure is balanced and usually you should eat more vegetables and fruits.