Age spots, also known as liver spots or solar lentigines, are flat, brown, or black spots that typically appear on areas of the skin that have been exposed to the sun over time. They are common in older adults and often appear on the face, hands, arms, shoulders, and upper back. Age spots are usually harmless and do not require medical treatment, but they can be cosmetically bothersome for some individuals.
The primary characteristic of age spots is their color, which ranges from light brown to dark brown or black. They vary in size and can be as small as a freckle or as large as half an inch in diameter. Age spots are flat and have a uniform appearance, distinguishing them from other types of skin lesions.