Ringworm is usually characterized by the appearance of pimples, papules, and blisters on the skin lesions, accompanied by itching of varying degrees. Tinea corporis is a fungal infection of the skin that occurs in superficial areas of the body, such as hair, scalp, hands and feet, armor plate, groin, etc. It is commonly seen on the skin of the face and neck, the forearms of the trunk and the hands. The causative fungi of tinea corporis are more commonly known as Trichophyton rubrum, Trichophyton violetum, and flocculent epidermidis, etc. After contacting the surface of the skin, dermatophytes will continue to grow and multiply by adhering to, colonizing, and penetrating the cells of the stratum corneum, thus affecting the proliferation of skin cells. After infection, the fungus will stimulate the skin surface and produce local inflammation, causing the patient to develop localized papules, pimples, blisters and well-demarcated red scaly plaques, which will be covered with scales and have a clear boundary with the surrounding normal skin, spreading in all directions and showing a wide distribution, accompanied by varying degrees of itching symptoms. As the disease progresses, the center of the lesion fades, but the edges become actively raised and extend in all directions, forming a ring or multiple rings of plaques. These plaques may fuse with each other, and some patients may show signs of pus in the plaques. After the symptoms of ringworm appear, it is recommended to go to the hospital for treatment in time, so as not to cause the disease to spread and aggravate.