What type of organism typically causes tinea corporis?

Tinea corporis, commonly known as ringworm of the body, is primarily caused by dermatophytes, which are a group of fungi. Dermatophytes have the ability to invade keratinized tissues, such as the skin, hair, and nails, leading to infections characterized by circular, red, itchy patches with clear centers. These fungi thrive in warm, moist environments and can be found in soil, on animals, and on humans. The infective nature of dermatophytes and their specific adaptation to keratin make them the leading cause of tinea corporis.

Understanding the role of dermatophytes in tinea corporis is crucial because it guides appropriate therapeutic interventions, which typically involve antifungal medications targeting these fungal organisms. In contrast, other types of organisms such as bacteria, viruses, or protozoa do not typically cause this particular condition, which is specifically related to fungal infections of the skin.