Malassezia is a group of yeasts that normally live on human skin. Their presence alone does not mean disease. Under certain conditions, these yeasts can contribute to skin or scalp problems. The pattern of symptoms and a clinician’s assessment matter more than a social-media label. 2, 3
Itchy bumps, flakes and discolored patches can have different causes. A dermatologist may examine the skin and, when needed, take a sample. 2, 5
2
Keep care gentle
For seborrheic dermatitis, use gentle, fragrance-free cleansing and moisturizing. Rinse thoroughly; irritating skin care can trigger a flare. 6
3
Follow a condition-specific plan
Medicated shampoos and topical antifungals may help certain conditions. The product, application site and contact time should match your clinician’s advice and label. 5, 2
03 Different conditions, different care
Seborrheic dermatitis
Can cause itchy, flaky or greasy-scaled skin on the scalp, face or beard area. Yeast and skin oils appear to play a role. 7, 3
On darker skin, affected areas may look lighter, darker or purplish rather than simply red.
Tinea versicolor
Yeast overgrowth can cause scaly patches that are lighter or darker than surrounding skin; patches may itch. 4, 8
Also called pityriasis versicolor. A change in skin color alone does not identify its cause.
Malassezia folliculitis
Often causes small, similarly sized itchy bumps or pustules around hair follicles, commonly on the chest and upper back. 2, 1
Often nicknamed “fungal acne,” but it is not acne vulgaris. Similar-looking conditions may need different treatment.