The dry, itchy patch on your inner elbow that never quite goes away may not be everyday dryness. It may be eczema, a chronic inflammatory skin disease that affects more than 31 million Americans, according to the American Academy of Dermatology (AAD). Atopic dermatitis is by far its most common form.
The National Eczema Association puts the figure in the same range. Yet many people go undiagnosed for years, because the early signs mimic simple dry skin.
The National Institutes of Health notes that atopic dermatitis is a chronic disease that causes inflammation, redness and irritation, not a passing dry spell. Here are the 8 warning signs that dermatologists and health authorities look for.
1. An itch that will not leave you alone
Intense itching is the hallmark. NIH lists persistent itch as the defining feature, and the AAD notes that adults with the condition can itch all the time, even between visible flare-ups.
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2. Itching that flares at night
Nighttime itch is one of the most reliable clues. The AAD notes that infants often rub against carpeting and blankets to relieve it, and older children and adults commonly wake in the night from scratching, which can badly disrupt sleep.
3. Rash in the skin folds
Location matters. In older children, teens and adults, the AAD says the rash typically settles in the creases of the elbows, backs of the knees, ankles and neck. Ordinary dry skin does not favor these flexural folds.
4. Small, rough bumps and scaly patches
The AAD notes that lighter skin tones often show a red rash with bumps, while darker skin tones may show small, rough bumps with or without visible redness. The skin can feel dry, scaly and slightly warm.
5. Bumps or blisters that weep clear fluid and crust over
NIH describes rashes that may ooze, weep clear fluid or bleed when scratched. The AAD adds that blisters can crust over, particularly in infants and young children during a flare.
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6. Thickened, leathery skin
Chronic rubbing changes the skin itself. The AAD describes patches that have permanently thickened and developed a leathery texture, a process dermatologists call lichenification. NIH refers to it as thickening and hardening of the skin.
7. Rash on the face and scalp in infants
Presentation shifts with age. In babies and young children, the AAD notes the rash most often appears on the cheeks, forehead or scalp before it spreads to the trunk, arms and legs. In older children the pattern moves to the elbows, knees and ankles.
8. Extra creases and darkening under the eyes
The AAD describes creases and discolored skin beneath the lower eyelids, known as Dennie-Morgan folds. In adults, the skin around the eyes can also become thickened and darker. It is a subtle sign that is easy to miss.
When to see a dermatologist
Persistent itch that disturbs your sleep, a rash that keeps returning in the same body folds or dry patches that never fully heal are all reasons to see a dermatologist. The AAD flags yellow or golden crusting, warmth and swelling as signs of a secondary staph infection, which needs prompt medical treatment.
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This article is made and published by Jesper Bengtson, who may have used AI in the preparation.