Here are the top 10 skin diseases in the USA, ranked by prevalence and impact, along with how to identify them.
1. Acne Vulgaris
Prevalence: Affects ~50 million Americans annually. Acne is the most common skin condition in the United States. While often associated with teenagers, adult acne is rising, affecting up to 15% of adult women. It occurs when hair follicles become plugged with oil and dead skin cells.
Symptoms: Whiteheads, blackheads, tender bumps (papules), and painful, pus-filled lumps (cysts).
Doctor's Advice: Acne can leave permanent scars. If over-the-counter treatment fails, use our AI medical assessment to see if you need a prescription strategy.
2. Atopic Dermatitis (Eczema)
Prevalence: Affects ~31 million Americans. Eczema is a chronic condition that makes your skin red and itchy. It is most common in children but can manifest at any age. It is often linked to asthma and hay fever.
Symptoms: Dry, scaly patches; severe itching (especially at night); and red to brownish-gray patches, especially on hands, feet, ankles, and eyelids.
Think it's Eczema? Differentiating eczema from psoriasis can be difficult. Upload a photo now to get clarity.
3. Skin Cancer (Basal & Squamous Cell, Melanoma)
Prevalence: ~9,500 people are diagnosed every day. This is the most critical category. Skin cancer is the most common cancer in the United States.
Basal/Squamous Cell: Often appear as pearly bumps or flat, flesh-colored scar-like lesions.
Melanoma: The deadliest form. Look for the ABCDEs: Asymmetry, Border irregularity, Color changes, Diameter >6mm, and Evolving shape.
Urgent Note: Early detection has a 99% survival rate. If you have a changing mole, do not guess. Get an AI-powered skin condition analysis instantly.
4. Contact Dermatitis
Prevalence: One of the most common reasons for dermatology visits. This is a red, itchy rash caused by direct contact with a substance (like poison ivy) or an allergic reaction to it (like nickel or fragrances).
Symptoms: Red rash, itching, burning, and sometimes blisters.
Diagnosis: If you have a rash that appeared suddenly after touching something, our AI can help confirm if it looks like an allergic reaction.
5. Rosacea
Prevalence: Affects ~16 million Americans. Rosacea is a chronic skin condition that causes redness and visible blood vessels in your face. It may also produce small, red, pus-filled bumps.
Symptoms: Facial redness, swollen red bumps, eye problems, and an enlarged nose (rhinophyma).
Why Check? It is often mistaken for acne or an allergic reaction, leading to the wrong treatment. Accurate medical assessment is key.
6. Seborrheic Dermatitis
Prevalence: Affects ~3 to 10% of the population. Commonly known as dandruff when on the scalp, this condition causes scaly patches and red skin. It can also affect oily areas of the body, such as the face and chest.
Symptoms: Skin flakes (dandruff), patches of greasy skin covered with flaky white or yellow scales.
7. Tinea Infections (Ringworm, Athlete's Foot)
Prevalence: Highly common fungal infection. "Ringworm" is a misnomer; it is caused by a fungus, not a worm. It includes Athlete's Foot (tinea pedis) and Jock Itch (tinea cruris).
Symptoms: A ring-shaped rash, redness, itching, and cracked skin between toes.
Identify it: Is it Eczema or Fungus? They look similar but require opposite treatments. Upload a photo for AI analysis to stop the guess-work.
8. Psoriasis
Prevalence: Affects ~7.5 million Americans. Psoriasis is an immune-mediated disease that causes raised, red, scaly patches to appear on the skin. It speeds up the life cycle of skin cells, causing them to build up rapidly on the surface.
Symptoms: Red patches of skin covered with thick, silvery scales; dry, cracked skin that may bleed.
9. Viral Warts (HPV)
Prevalence: Affects 1 in 3 children and teenagers; ~3-5% of adults. Caused by the human papillomavirus (HPV), warts are rough bumps that can appear anywhere but are common on hands and feet.
Symptoms: Small, fleshy, grainy bumps; rough to the touch; sprinkled with black pinpoints (clotted blood vessels).
10. Herpes Simplex (Cold Sores)
Prevalence: ~67% of the global population under 50 has HSV-1. Herpes Simplex Virus Type 1 (HSV-1) usually causes cold sores around the mouth.
Symptoms: Tingling/itching before a blister appears; painful, fluid-filled blisters on lips or nose.
Why Visual AI is the Future of Dermatology
If you recognized symptoms from this list, your next step is crucial. Waiting for a specialist appointment in the US can take an average of 32 days. In that time, conditions like infections or melanomas can worsen.
Why use our Advanced AI-powered skin condition analysis?
- •Speed: Get an assessment in seconds, not weeks.
- •Privacy: No need to sit in a waiting room; check from the privacy of your home.
- •Cost: It is free to start.
Stop Googling "what is this rash" and getting confused by conflicting images. Use technology built to recognize these top 10 diseases with precision.