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Definition
Liver spots are flat brown-black spots that usually occur in sun-exposed areas of the body. They are also called age spots. They are unrelated to the liver or liver function.
Causes, incidence, and risk factors
Liver spots are changes in skin color associated with older skin. The increased pigmentation may be brought on by aging, exposure to sun or other forms of ultraviolet light, or other unknown causes.
Liver spots are extremely common after 40 years old. They occur most often on the backs of the hands, on the forearms, shoulder, face, and forehead. These are the areas of highest sun exposure.
They are harmless and painless, but they may affect the cosmetic appearance. Occasionally, liver spots may mask the diagnosis of skin cancers.
Symptoms
Skin lesion that is a painless, flat patch or macule (area of skin color change)
Light brown to black
Usually located on the hands, arms, or forehead
Signs and tests Return to top
A diagnosis is based on the appearance of the skin, especially if the patient is over 40 and has had a lot of sun exposure over the years.
Treatment
No treatment is needed in most cases. The cosmetic appearance of your skin may be improved by the use of skin bleaching lotions or creams. Cryotherapy (freezing) or laser treatment may be recommended to destroy the liver spots.
Expectations (prognosis)
Liver spots are not medically dangerous. They are permanent skin changes that may affect cosmetic appearance.
Complications
A possible complication is emotional distress from the appearance of the liver spots.
Calling your health care provider
Call for an appointment with your health care provider if liver spots are present and removal is desired, or if any new symptoms develop, particularly changes in the appearance of any skin lesion.
Prevention
Protect your skin from the sun by taking the following precautions:
Wear protective clothing such as hats, long-sleeved shirts, long skirts, or pants.
Use sunglasses to protect the eyes.
Sunlight is most intense at midday, so try to avoid exposure during these hours.
Use high quality sunscreens, preferably with SPF (sun protection factor) ratings of at least 15. Apply sunscreen at least a half hour before exposure, and reapply frequently. Use sunscreen in the winter, too.
Update Date: 4/17/2003
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
http://www.nlm.nih.gov/medlineplus/ency/article/001141.htm
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