Ringworm is a skin disease caused by infection with fungi of the genus Microsporum and Epidermophyton. It can be transmitted by direct and indirect contact or by self-inoculation. Ringworm occurs as a result of direct contact with the lesions of a person with ringworm, or indirect contact with contaminated items. It is easily triggered to appear when the body’s immunity is lowered and the area is moist and sweaty. According to the different parts of the onset of ringworm, ringworm can be divided into ringworm of the head, tinea corporis, tinea cruris, tinea pedis, ringworm of the nails and so on. After the appearance of skin ringworm infection should promptly seek medical treatment, follow the doctor’s instructions to use antifungal drug treatment.