what are liver spots caused by
Causes of liver spots. Liver spots are caused due to exposure to UV or ultraviolet light from the sun over a period of several years. It can also result from excessive use of tanning beds and tanning lamps. The epidermis or the upper layer of the skin contains a pigment known as melanin, which gives the skin its color.iver spots, also known as age spots and solar lentigines, are flat, brown, gray or black spots that generally occur on the face, shoulders, hands and arms.
Causes. Liver spots are changes in skin color that occur in older skin. The coloring may be due to aging, exposure to the sun or other sources of ultraviolet light, or causes that are not known.Liver spots are very common after age 40.iver spots are changes in skin color that occur in older skin. The coloring may be due to aging, exposure to the sun or other sources of ultraviolet light, or causes that are not known.