A circular red rash like the one shown in the image is a common skin concern that many people experience at some point. While it may look alarming at first glance, it is often linked to a manageable condition—most commonly ringworm, a fungal infection of the skin. Despite its name, ringworm has nothing to do with worms. Instead, it is caused by fungi that thrive on warm, moist areas of the body.

What Does This Type of Rash Look Like?

The rash typically appears as a round or oval patch with a slightly raised, red border and a clearer or lighter center. It may gradually expand outward, forming a ring-like shape. The affected area can feel itchy, dry, or slightly scaly. In some cases, multiple rings may develop, especially if the infection spreads.

Common Causes

The most frequent cause of this type of rash is tinea corporis, a fungal infection that spreads through direct contact. You can get it by touching infected skin, sharing personal items like towels or clothing, or even from pets such as cats and dogs. Warm, humid environments also increase the risk, making it more common in people who sweat heavily or live in tropical climates.
However, not all ring-shaped rashes are fungal. Conditions like eczema, allergic reactions, or even insect bites can sometimes mimic this appearance. That’s why proper identification is important.