Definition of Tinea capitis:

Tinea capitis is an infection of the scalp by mold-like fungi called dermatophytes.

Causes, incidence, and risk factors:

Tinea capitis (also called ringworm of the scalp) is a skin disorder that usually affects only children. It can be persistent and contagious, however, it often disappears spontaneously at puberty.

The fungi that cause tinea infections thrive in warm, moist areas. You have an increased risk for tinea infection if you have poor hygiene, prolonged wetness of the skin (such as from sweating), and minor skin or scalp injuries.

Tinea infections are contagious. You can catch it if you come into direct contact with someone who has the condition, or if you touch contaminated items such as combs, hats, clothing, or similar surfaces. The infection can also be spread by pets, particularly cats.