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Vitiligo, a disorder that occurs in at least 1 percent of the population of all races and both sexes, interferes with the distribution of pigment (melanin) in the skin. It leads to areas of skin that lack the normal pigmentation so that areas of white skin are surrounded by normally colored skin or even a surrounding border of increased pigmentation. Continue reading →

Most warts in children eventually disappear on their own. Even when they do, however, it may take several months or even years for them to resolve without treatment. Some warts don’t go away spontaneously; the reason is not fully understood. Continue reading →

Tanning is an increase in pigment in the skin in response to injury from ultraviolet rays whether from the sun or a tanning parlor. The injury is cumulative starting with earliest sun exposure, but it’s not apparent until the damage causes visible skin changes. Continue reading →

Shingles (herpes zoster) is caused by the same virus that causes chickenpox (varicella). Chickenpox usually occurs as a childhood illness and leads to a generalized rash over the body. Continue reading →

Scleroderma literally means “hard skin.” It is one of a group of conditions known as immunologic rheumatic diseases, also known as connective tissue or collagen diseases. Continue reading →

Ringworm, or tinea corporis, is an infection of the skin caused by a fungus that leads to an itchy, red, scaly rash on the scalp, face, torso or groin that spreads outward as the central area becomes less actively infected. Continue reading →

Itching or irritation of the skin around the anal area (pruritus ani) may have many causes. In children, a common cause is infestation with the parasite that causes pinworms. The female worm lays eggs at night on the skin near the anus. This leads to intense itching. Scratching transfers the eggs to the fingernails so that reinfection or transmission to others may occur. Continue reading →

The term pilonidal comes from a combination of Latin words meaning “hair nest.” A pilonidal cyst is located in the cleft of the buttocks in the tissue near the tailbone (coccyx). It’s in an area that commonly has some growth of hair in adults. Continue reading →