Age spots — also called liver spots and solar lentigines — are small dark areas on your skin. They vary in size and usually appear on the face, hands, shoulders and arms — areas most exposed to the sun.
Age spots are very common in adults older than 50. But younger people can get them too, especially if they spend a lot of time in the sun.
Age spots can look like cancerous growths. But true age spots are harmless and don't need treatment. For cosmetic reasons, age spots can be lightened with skin-bleaching products or removed.
You can help prevent age spots by regularly using sunscreen and avoiding the sun.
Age spots may affect people of all skin types, but they're more common in people with light skin. Age spots:
- Are flat, oval areas of increased pigmentation
- Are usually tan, brown or black
- Occur on skin that has had the most sun exposure over the years, such as the backs of hands, tops of feet, face, shoulders and upper back
Age spots range from freckle size to about a 1/2 inch (13 millimeters) across and can group together, making them more noticeable.
Age spots are caused by overactive pigment cells. Ultraviolet (UV) light accelerates the production of melanin. On the areas of skin that have had years of frequent and prolonged sun exposure, age spots appear when melanin becomes "clumped" or is produced in high concentrations.
The use of commercial tanning lamps and tanning beds can also contribute to the development of age spots.
Anyone can develop age spots, but you may be more likely to develop the condition if you:
- Have red hair and light skin
- Have a history of frequent or intense sun exposure or sunburn