The hands, face, shoulders, arms and forehead may be most commonly affected. If bald, the patient may experience sun spots on the head as well. Sun spots may be caused by an overexposure to ultraviolet light from the sun or from tanning beds or lamps.

UV light may cause an overproduction of melanin, a dark pigment in the epidermis that gives skin color. Sun spots may occur when melanin is produced in higher concentrations than normal.

It may take years for sun spots to develop, as many individuals may experience sun spots with age. For this reason, sun spots may be referred to as age spots. As people grow older, they may produce more melanin than usual as well. Genetics may also play a role in developing sun spots.

Sun spots may appear as flat and oval areas of increased pigmentation on the skin. People with a fair complexion may be more prone to developing sun spots, although people of all skin tones may develop them.

Sun spots may be accompanied by other conditions caused by an excessive exposure to the sun. These may include wrinkles, dry skin, rough skin, red veins on the cheeks, nose or ears and thinner, more translucent skin.

Certain treatments may be available to treat the appearance of sun spots. Certain medications may be effective, such as prescription bleaching creams designed to reduce the appearance of sun spots.

Laser therapy may destroy the extra melanin without damaging the skin's surface. Other treatments may include freezing (cryotherapy), dermabrasion and chemical peels. These methods may be effective in reducing the appearance of sun spots. A health care professional may offer other treatment options.

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