Liver spots, also known as age spots or solar lentigines, are flat, brown, or black patches that appear on the skin, primarily in areas exposed to the sun. They are common in older adults and are caused by an increase in melanin, the pigment responsible for skin color. While they are generally harmless, their appearance can be a sign of sun damage. These spots typically develop on the face, hands, arms, and shoulders. Although liver spots do not require treatment, some people choose to lighten them for cosmetic reasons. Various options, including topical creams and laser therapy, are available for those seeking to reduce their visibility.