Liver spots, also known as senile lentigines, are harmless patches of increased pigmentation that range from freckle-size to a few inches across.

Liver spots are extremely common after the age of 55 and occur most commonly on the backs of hands or the forehead. Although frequently associated with overexposure to sun, they also occur from unknown causes.

Liver spots, also called old age spots, result from long-term exposure to sunlight – not liver disease. They tend to increase in number with...