Tinea corporis disease is relatively common in life, and summer is the high season for tinea corporis. It is mostly seen in people who are obese and sweaty, diabetic and immunosuppressed as susceptible people. Tinea corporis is a skin disease caused by fungal infection on the inner femur, perineum, and buttocks. The pathogens are mainly caused by Trichophyton rubrum, Trichophyton rubrum, Trichophyton epidermidis, and Candida albicans. It is caused by contact with the pathogen, such as the patient himself, ringworm-bearing animals, and contaminated clothing and utensils. People with reduced body resistance are more likely to develop the disease if they are bedridden, weak, have chronic wasting diseases, malignant tumors, or use corticosteroids. As the fungus invades the epidermis, it is usually parasitic only in the stratum corneum, initially as a red papule or small blister, and then gradually expands to the periphery, with papules and blisters often visible at the edges and no oozing on the surface. Some ring-shaped lesions can also appear again within the ring-shaped papules, blisters, scales, accompanied by varying degrees of itching. It is important to pay attention to personal hygiene and keep it clean and tidy. If you have foot odor yourself, you should pay more attention. Socks should not be mixed with clothes and washed together, which can lead to fungal infection. If ringworm develops, you should immediately seek medical attention for antifungal medication. Also, improve your health, strengthen your immune system, and disinfect your bed, shoes and socks, towels, etc.