Xeroderma

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Xeroderma literally means "dry skin". It is a condition involving the integumentary system, which in most cases can safely be treated with emollients and/or moisturizers. Xeroderma occurs most commonly on the lower legs, arms, the sides of the abdomen and thighs. Symptoms most associated with Xeroderma are scaling (the visible peeling of the outer skin layer), itching and cracks in the skin

[edit] Common causes

Xeroderma is a very common condition. It happens more often in the winter where the cold air outside and the hot air inside causes a low humidity. This causes your skin to lose moisture and may crack and peel. Bathing/showering too frequently, especially if you are using harsh soaps may also contribute to xeroderma. Xeroderma can also be caused by a deficiency of vitamin A, systemic illness, overexposure to sunlight or some medication.