Common Conditions

Vitiligo is a common skin disorder. It makes the skin lose its natural color (pigmentation).

If your skin is erupting with blemishes that you thought could only affect a teenager, you may have adult acne. This is acne in people over the age of 25.

Warts are common skin growths that can appear anywhere on the body. There are many types of warts. In most cases, they aren't cancer (benign) and are harmless. But warts can be embarrassing. And some warts are painful. The good news is that they can be treated.

Most moles are not cancer and are harmless. But some do become cancer. That's why you need to check the moles on your body.

Rosacea is a chronic skin disease that causes facial redness. It appears mainly in adults. Light-skinned people who tend to flush are most often affected. Read on to learn more.

This condition causes your skin to be irritated. People with asthma or allergies also often have this condition.

Psoriasis is a chronic skin disease. It can begin at any age. Learn about symptoms and treatments.

Poison oak, poison ivy, and poison sumac are plants that can cause skin rashes. Here's what you need to know about recognizing these plants, how they cause a reaction, and preventive steps you can take to protect yourself.

A subungual hematoma is a pool of blood that collects under a nail after an injury. In most cases a nail hematoma isn't serious, but it can be very painful.

Most sunburns are minor and go away in a few days. But sunburns can be serious. It's important to know when to get medical care.

Scabies is an infection caused by tiny mites that burrow into the skin. They cause severe itching. Though children are most commonly infected, anyone can get scabies. Scabies mites can pass from person to person through close physical contact. They can also be passed through shared clothing, towels, and bedding.

Impetigo is a skin infection that causes red, crusty sores. It's more common in young children, but adults can also get it. It can be spread easily from person to person.

Acanthosis Nigricans is a skin condition that causes dark, thick patches on the skin. It is more common in people who have diabetes or are at risk of developing diabetes.

Actinic keratosis is a skin growth caused by sun damage. Many people get these growths, especially as they age. This is because of regular exposure to the sun over years.

Alopecia areata is a condition that causes your hair to fall out. It causes bald patches on the scalp, but it can also cause hair loss on other parts of the body.

Bullous pemphigoid is a skin disease that causes blisters to form. They often appear on the arms, legs, groin, chest, and stomach.

A carbuncle is a painful boil under the skin. It happens when a group of hair follicles become infected.

Cercarial dermatitis is a type of skin rash. It's caused by an allergic reaction to tiny parasites. The parasites are sometimes found in water such as lakes, rivers, and the ocean.

Contact dermatitis is a common type of skin rash. It's caused by something that touches the skin and makes it irritated and inflamed.

Seborrheic dermatitis is a common type of rash that causes red, scaly, greasy skin. It occurs on skin that has oil glands, such as the face, scalp, and upper chest.

An epidermoid cyst is a small abnormal growth in the top layers of the skin. These cysts grow slowly, and they can grow anywhere on the body.

Folliculitis is a skin condition that affects the hair follicles. It's often found on the neck, face, and scalp.

Hidradenitis suppurativa is a long-term (chronic) skin disease. It causes painful bumps and sores to form around a hair follicle.

Hyperhidrosis is excessive sweating. It's often an ongoing (chronic) condition. The symptoms can start when you're a child and continue into adulthood. Here's what you need to know.

Lichen planus is a chronic skin disease. It's a rash that can develop anywhere on the body. But it most often occurs on the wrists, arms, legs, scalp, and genitals.

Lichen sclerosus is a skin condition that causes white patches to form on the body. They most often affect skin around the genitals and anus. But they can appear anywhere, even in the mouth.

A lipoma is a lump under the skin that's made of fat. It's not cancer (benign). Learn more about how lipomas occur, symptoms, treatment options, and possible complications.

Pityriasis rosea is a type of skin rash. It starts with one large round or oval scaly patch called the herald patch, and then causes many more small patches.

Lice are small insects that feed on human blood. They attach themselves to hair. Those that infest hair in the groin area are called pubic lice.

Seborrheic keratoses are wart-like growths on the skin. These growths are not cancer. Many people get them, especially after age 30.

Watch this to hear how one man has lived with psoriatic arthritis.

You may have noticed tiny red or blue bursts (spider veins). Or maybe you have veins that bulge or look twisted (varicose veins). If so, there are treatments that can help.

Information about self-care for spider and varicose veins includes exercising and maintaining a healthy weight.