Medical emergency? Call 911 in the U.S. or your local emergency number. This website is for education, not diagnosis.

Skin, hair & nails

Skin Health

Understand common rashes, inflammatory conditions, infections, wounds, acne, hair and nail changes, sun safety, and skin cancer warning signs.

Skin symptoms

Useful details include the exact location, appearance, color, texture, itch or pain, timing, spread, fever, new products, occupational exposure, travel, medicines, and whether others have similar symptoms. Photographs taken in consistent light can help show change over time.

Common issues

Inflammatory

Acne, eczema, psoriasis, rosacea, hives, and contact dermatitis.

Infectious

Bacterial, viral, and fungal infections; infestations; and infected wounds.

Hair and nails

Hair loss, brittle or discolored nails, and changes linked to health or medication.

Growths and cancer

Benign lesions, precancers, basal cell cancer, squamous cell cancer, and melanoma.

Urgent skin warning signs

Seek prompt or emergency carefor rapidly spreading painful redness, fever with a severe rash, skin peeling, rash involving eyes or mouth, purple spots with illness, severe burns, signs of serious infection, or rash with trouble breathing or facial swelling.

Sun protection

Use shade, clothing, hats, sunglasses, and broad-spectrum sunscreen as part of a combined strategy. Check skin regularly and ask a clinician about changing, bleeding, non-healing, or unusual spots.

Go to the source

Trusted organizations

Use these official resources for detailed, updated information and patient materials.

Verified source

American Academy of Dermatology

Patient education on skin, hair, nails, sun protection, and dermatologic conditions.

Visit official source ↗
Verified source

MedlinePlus Skin Diseases

Plain-language information about common skin disorders and treatments.

Visit official source ↗
Verified source

National Cancer Institute Skin Cancer

Information on melanoma and nonmelanoma skin cancer.

Visit official source ↗