Why must vitiligo be called vitiligo?

Vitiligo is an acquired depigmentation disease, which is not a genetic disease and is not contagious. Most people believe that autoimmune abnormalities selectively attack melanin-producing cells in the skin, leading to depigmented leukoplakia. There are various types (please refer to my guide article on vitiligo). The characteristics of leukoplakia are: smooth surface, no dandruff, clear boundary or cloud-like (depending on the illness period), generally painless, and individual progressive itching.

White fever

Halo nevus is a white halo with depigmentation around pigmented nevus, which may be a special type of vitiligo (currently controversial), and it can generally subside automatically, but the risk of vitiligo may be greater for more halo nevus. Experts' opinions on treatment are controversial. Some experts encourage the removal of nevus and treat it as vitiligo. Some experts do not recommend excision, because they have met a very small number of patients who have disseminated vitiligo after hydatidiform mole excision, and they only treat it according to the conventional treatment methods of vitiligo.

Halo nevus

Pityriasis albicans, also known as pityriasis simplex or ringworm of peach blossom, is very common in clinic, and it is also a white spot that parents are worried about, and it is also the most visited clinic. Common on the faces of children and teenagers. There is a lot of dandruff on the surface of leukoplakia, and some patients have slight itching. Most of the sebaceous glands in adolescence develop normally, and can subside on their own, but they will be treated repeatedly and symptomatically. The etiology is unknown. It is considered that malnutrition and vitamin deficiency caused by picky eaters, or wind blowing, sun exposure and ascaris lumbricoides (the improvement of living standards has little correlation with ascaris lumbricoides) are all possible inducing factors, and sometimes this disease may be the facial manifestation of atopic dermatitis.

Pityriasis albicans

Tinea versicolor is a fungal skin disease caused by malassezia infection. It shows various colors, among which hypopigmentation's leukoplakia, with dandruff on the surface, usually occurs on the forehead, face and neck of infants. Fungal microscopic examination is positive, so it should be differentiated from vitiligo (fungal examination is negative).