Tinea pedis is the common name for ringworm. Tinea pedis tends to recur in the summer because of the heat and the moisture between the toes, which is suitable for fungal growth. Tinea pedis is a contagious skin disease associated with infection with ringworm. Ringworm as a microorganism, mainly divided into Trichophyton, Epidermophyton and Microsporum, its suitable living environment for the warm and humid environment, so often in the finger cracks, toe cracks and other parts of the onset. In summer, the weather is hot, and the skin sweats more. If the sweat is not cleaned in time, the local skin becomes moist, which is more suitable for the growth of fungus, so the fungus will reproduce in large quantities in this environment, thus inducing tinea pedis. The key measure to prevent tinea pedis is to pay attention to hygiene, and at the same time strictly follow the doctor’s instructions to give anti-fungal drug treatment.