Acne is a common skin disease that causes pimples.

Actinic keratosis is a skin condition that sometimes becomes squamous cell carcinoma.

A skin allergy, or allergic contact dermatitis, produces a red, itchy rash that sometimes comes with small blisters or bumps.

Basal cell skin cancer begins in the basal cell layer of the skin. It usually occurs in places that have been in the sun.

Cold sores are caused by a contagious virus called herpes simplex virus (HSV).

Atopic dermatitis, also known as eczema, is a non-contagious inflammatory skin condition.

Dry skin occurs when your skin loses too much water and oil.

Eczema is a non-contagious inflammatory skin condition that affects an estimated 30 percent of the US population, mostly children and adolescents.

Fungal infections have been associated with many skin diseases and conditions, including athlete’s foot, eczema, dandruff, yeast infections and toenail infections.

Granuloma annulare is a long-term (chronic) skin disease consisting of a rash with reddish bumps arranged in a circle or ring.

Small amounts of hair shedding a day is normal; people who notice their hair shedding in large amounts after combing or brushing or whose hair becomes thinner or falls out should talk to their physician for treatment.

Herpes is an infection that is caused by a herpes simplex virus (HSV).

Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles.

Lichen planus is a condition that forms an itchy rash on the skin or in the mouth.

If you have lupus, your immune system attacks healthy cells and tissues by mistake.

Melanoma is the most serious type of skin cancer.

Moles are growths on the skin.

Molluscum contagiosum is a viral skin infection that causes raised, pearl-like papules or nodules on the skin.

Perioral dermatitis is a skin disorder in which tiny red bumps form around the mouth.

Pityriasis rosea is a common type of skin rash seen in young adults.

Poison ivy, oak, or sumac poisoning is an allergic reaction that results from touching the sap of these plants.

Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales.

Rosacea is a long-term disease that affects your skin and sometimes your eyes.

Scabies is an itchy skin condition caused by a microscopic mite.

Seborrheic dermatitis is a common, inflammatory skin condition that causes flaky, white to yellowish scales to form on oily areas such as the scalp, face or inside the ear.

Shingles is a disease caused by the varicella-zoster virus – the same virus that causes chickenpox.

Skin cancer is the most common type of cancer in the United States.

Squamous cell cancer is the second most common type of cancer in the United States.

Vitiligo causes white patches on your skin.