Ringworm is mainly caused by infections of Trichophyton verrucosum, Trichophyton rubrum, Trichophyton suis, and Microsporum canis. It can be infected by direct or indirect contact, and can also be caused by the spread of fungal infections on one’s own hands and feet. Ringworm refers to a dermatophyte infection on the superficial skin of the groin, perineum, perianal area and buttocks, etc. Essentially, ringworm belongs to the tinea corporis that occurs in special areas. Ringworm is a fungal infectious skin disease, mainly caused by infection with Trichophyton verrucosum, Trichophyton rubrum, Trichophyton mustelii, and Microsporum canis. Ringworm is contagious, can be directly or indirectly contact triggered infection, but also through their own hands, feet and other parts of the infection caused by the spread. After the occurrence of ringworm, patients can appear localized erythema, flaking, papules, blisters, vesicles, oozing and so on. It can also be caused by the poor permeability of the affected area, moisture, easy friction and other characteristics of the skin lesions inflammation is obvious, itching serious. Once infected with ringworm after the need for timely drug treatment, can use ketoconazole, clotrimazole, terbinafine, amorolfine and other antifungal drugs to control, at the same time need to strengthen personal hygiene, do not share clothes, towels and so on. Wear loose, breathable underwear to speed up the recovery of the affected area.