Conditions A–Z
What we treat
The skin is the largest organ of the human body. With all these obligations and complexities also comes the opportunity to develop a wide range of adverse conditions.
Acne
Acne happens when hair follicles become clogged with oil and dead skin cells, leading to blackheads, whiteheads, pimples and sometimes deeper cysts. I…
Actinic keratosis
Actinic keratoses (AKs) are rough, scaly spots caused by years of sun exposure. They are considered precancerous because a small number can develop in…
Basal cell carcinoma
Basal cell carcinoma (BCC) is the most common type of skin cancer. It grows slowly and rarely spreads, but it can damage surrounding tissue if left un…
Dermatitis
Dermatitis is a general term for skin inflammation. Common types include contact dermatitis (a reaction to something that touched the skin), seborrhei…
Eczema (atopic dermatitis)
Eczema is a long-term condition that makes skin dry, itchy and inflamed. It often starts in childhood and tends to come and go in flares, which can be…
Hair loss
Hair loss has many causes, including genetics (pattern hair loss), stress or illness (telogen effluvium), immune conditions such as alopecia areata, s…
Hives (urticaria)
Hives are raised, itchy welts that appear and fade, often within hours. They can be triggered by foods, medicines, infections, heat, pressure or stres…
Keloids
Keloids are raised, firm scars that grow beyond the edges of the original wound. They can form after surgery, piercings, acne or minor injuries, and c…
Melanoma
Melanoma is a serious skin cancer that begins in pigment cells. It can spread to other parts of the body, but it is highly treatable when found early,…
Moles
Moles are common growths made of pigment cells. Most are harmless, but changes in a mole can be an early sign of melanoma, so it is important to know …
Nail fungus
Nail fungus (onychomycosis) is a common infection that makes nails thick, discolored and brittle. It is more common in toenails and in older adults.
Psoriasis
Psoriasis is a chronic immune-related condition that speeds up skin cell growth, causing thick, scaly patches. It is not contagious. Some people also …
Rosacea
Rosacea is a common long-term condition that causes facial redness and sometimes acne-like bumps. Flares can be triggered by sun, heat, spicy foods, a…
Seborrheic keratosis
Seborrheic keratoses are very common, harmless growths that appear with age. They often look waxy and “stuck on” the skin.
Skin cysts
A cyst is a closed sac under the skin filled with keratin or other material. Epidermoid cysts are common, usually harmless and can appear anywhere on …
Skin tags
Skin tags are small, soft, harmless growths that hang from the skin, often in skin folds like the neck, armpits and groin.
Squamous cell carcinoma
Squamous cell carcinoma (SCC) is the second most common skin cancer. It usually appears on sun-exposed skin and can grow and occasionally spread if no…
Sun damage
Years of ultraviolet (UV) exposure can cause early aging and raises the risk of skin cancer. Sun damage builds up over time, so protecting skin at any…
Warts
Warts are skin growths caused by the human papillomavirus (HPV). They are common, contagious through contact, and can appear on the hands, feet (plant…