Skin Disease

Age or Liver Spots
These pesky brown or gray spots are not really caused by aging, though they do become more common as people age. They're the result of sun exposure, which is why they tend to appear on areas that get a lot of sun, such as the face, hands, and arms. Bleaching creams, acid peels, and light-based treatments may lessen their appearance. To rule out serious skin conditions such as melanoma, see a dermatologist for proper identification.

Warts
In most cases, common warts appear on the fingers or hands. Caused by contact with the contagious human papillomavirus, warts can spread from person to person or via contact with something used by a person with the virus. You can prevent spreading warts by not picking them, covering them with bandages, and keeping them dry. In most cases, warts are harmless, painless, and go away on their own. If they persist, treatments include topical medications, freezing, burning, surgery, lasers, and chemicals.
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