What Causes Ringworm on the Face?

Facial tinea (ringworm) may be caused by pityriasis alba, tinea corporis, tinea versicolor, or seborrheic dermatitis. Pityriasis alba is associated with factors such as sun exposure, malnutrition, impaired skin barrier function, and vitamin deficiencies. Tinea corporis and tinea versicolor result from fungal infections. Seborrheic dermatitis is commonly linked to excessive sebum production, microbial colonization, consumption of spicy or irritating foods, neuropsychological factors, vitamin B deficiency, and alcohol intake.