Ringworm

Ringworm is a skin infection caused by a fungus. Ringworm can affect skin on your body (tinea corporis), scalp (tinea capitis), groin area (tinea cruris, also called jock itch), or feet (tinea pedis, also called athlete's foot).

Often, there are several patches of ringworm on your skin at once.

The symptoms of ringworm include:

• Itchy, red, raised, scaly patches that may blister and ooze. The patches often have sharply-defined edges. They are often redder around the outside with normal skin tone in the center. This may create the appearance of a ring. Your skin may also appear unusually dark or light.
• When your scalp or beard is infected, you will have bald patches.
• If nails are infected, they become discolored, thick, and even crumble.