DefinitionTinea capitis is a fungal infection of the scalp.Alternative NamesFungal infection - scalp; Infection - fungal - scalp; Tinea of the scalp; Ringworm - scalpCauses, incidence, and risk factorsTinea capitis (also called ringworm of the scalp) is caused by by mold-like fungi called dermatophytes. It usually affects children and disappears at puberty. However, it can occur at any age.The fungi that cause tinea infections thrive in warm, moist areas. You have an increased risk for tinea infection if you have:Minor skin or scalp injuriesPoor hygieneWet skin for a long time (such as from sweating)Tinea infections are contagious. You can catch tinea capitis if you come into direct contact with someone who has the condition, or if you touch contaminated items such as combs, hats, or cloth