What should you know about thickened scalp skin?

The scalp can feel raised, rough, scaly, or leathery when inflammation continues. Itch encourages scratching, and scratching can keep the skin irritated and alter its texture. Atopic dermatitis is one possible cause, while reactions to hair dye, fragrance, oils, or styling products may affect the hairline or areas of contact. Flaking, soreness, oozing, hair breakage, or patchy hair loss provide useful clues but do not establish a diagnosis by themselves.

Stop any newly introduced scalp or hair product and use a mild, fragrance-free shampoo while the skin settles. Rinse thoroughly, avoid picking scale, and keep nails short. Do not scrape thick plaques or apply oils over a wet, inflamed scalp. A clinician may recommend a medicated shampoo or prescribed anti-inflammatory treatment after examining the scalp and checking for infection, allergy, or another skin condition. Follow directions carefully around the eyes and face.

Arrange a review if thickening lasts, repeatedly returns, bleeds from scratching, or comes with persistent itch or hair loss. Seek prompt attention for pus, spreading redness, severe tenderness, fever, rapidly developing swelling, or a painful area that does not heal. Sudden patchy hair loss with inflammation also deserves assessment so treatment is not delayed.

Ask whether the appearance fits atopic dermatitis or contact irritation; which shampoo or product ingredients to avoid; whether hair loss is coming from the scalp or breakage; and when a persistent plaque needs testing.