Ringworm generally refers to dermatophytosis, which is mainly associated with dermatophyte infection, while excessive sweating and humidity, and weaker immunity are the predisposing factors. Dermatophytosis belongs to fungal infectious skin disease, which is mainly related to localized infection of dermatophytes, such as Trichophyton spp, Microsporum spp, and Epidermophyton spp. Among them, local moist and sweaty, weak immunity, living environment moisture or suffering from other skin diseases, etc., belong to the triggering factors of dermatophytosis. It is worth noting that tinea capitis can be transmitted through direct contact with the skin of tinea capitis patients, indirect contact with contaminated articles and other ways, which should be taken seriously. Usually, patients with dermatophytosis are mainly characterized by itching, flaking, roughness or thickening of the skin, which affects the quality of life and health. It is recommended that people who are clearly suffering from dermatophytosis adjust their mentality and actively cooperate with doctors to relieve the discomfort caused by the disease. Daily enhancement of skin care, itching, do not scratch, but also to avoid the use of irritating bathing products, foreign body friction stimulation.