• You're all caught up!

What Causes Liver Spots on My Arms?

author image Joanne Marie
Joanne Marie began writing professionally in 1981. Her work has appeared in health, medical and scientific publications such as Endocrinology and Journal of Cell Biology. She has also published in hobbyist offerings such as The Hobstarand The Bagpiper. Marie is a certified master gardener and has a Ph.D. in anatomy from Temple University School of Medicine.
What Causes Liver Spots on My Arms?
Liver spots may appear on the hands or arms. Photo Credit old hands typing image by Allyson Ricketts from <a href='http://www.fotolia.com'>Fotolia.com</a>

Liver spots are flat, usually oval spots that are brown or black in color. They actually have nothing to do with the liver or liver disease; they are called liver spots because their color can resemble the yellowish-brown color of liver. Liver spots are sometimes called age spots because they tend to appear in people over 40 and because they generally increase in number with age. The color in the spots comes from melanin that is deposited in large amounts by skin cells called melanocytes. According to Medline Plus from the National Library of Medicine, liver spots appear most often on the backs of the hands, the arms, the face and shoulders.

Sun Exposure

What Causes Liver Spots on My Arms?
Exposure to the sun is the biggest cause of liver spots. Photo Credit Sun image by Danni from <a href='http://www.fotolia.com'>Fotolia.com</a>

According to the Mayo Clinic, the number-one cause of liver spots is exposure to the sun. It can take years of sun exposure to produce the spots, and the areas of the body that receive the most sun exposure are the most common locations of the spots.

Tanning Beds

What Causes Liver Spots on My Arms?
Tanning beds can also cause liver spots. Photo Credit sexy tanning image by Alfonso d'Agostino from <a href='http://www.fotolia.com'>Fotolia.com</a>

In addition to sun exposure, other forms of exposure to ultraviolet light can cause liver spots. According to the British Columbia Cancer Agency, tanning beds and lamps cause premature skin aging and contribute to the development of liver spots in people who use them regularly.

Fair Skin

People with fair skin are more susceptible to skin damage from ultraviolet rays, and are therefore at a higher risk for liver spots. Using a suncreen of SPF 30 or higher to protect the skin may lessen the likelihood a fair-skinned person will develop liver spots.


Genetics may play a part in why one person develops liver spots while another does not. So far, no genes have been identified that increase a person's risk for the spots, but they do seem to be hereditary in some people, according to the National Library of Medicine.

LiveStrong Calorie Tracker
Lose Weight. Feel Great Change your life with MyPlate by LIVESTRONG.COM
  • Gain 2 pounds per week
  • Gain 1.5 pounds per week
  • Gain 1 pound per week
  • Gain 0.5 pound per week
  • Maintain my current weight
  • Lose 0.5 pound per week
  • Lose 1 pound per week
  • Lose 1.5 pounds per week
  • Lose 2 pounds per week
  • Female
  • Male
ft. in.



Demand Media