Age spots, also known as liver spots or sun spots, are patches of unusually dark skin on your body. They’re called age spots because they’re most likely to appear after age 50, although some people develop them earlier in life.
Age spots are caused by hyperpigmentation of your skin cells. This means that your skin starts producing too much pigment (color), making it appear darker than normal. The pigment that produces skin color is called melanin.
Why does your skin start overproducing melanin? It all comes down to your sun exposure. Ultraviolet (UV) rays from the sun speed up your body’s natural melanin production. Over time, UV rays can cause your skin to overproduce this dark pigment, leading to age spots.
Unlike freckles, which fade after sun exposure ends, age spots are more permanent. However, they do appear similar to freckles clumped together. They’re most common in areas of the skin that frequently receive sun exposure, like your face, arms, or hands as well as the tops of your feet.
Liver spots are not painful or itchy, but they do signify your body has received a significant amount of sun exposure. While age spots are not indicative of any serious medical condition, it’s a good idea to monitor them, as they can appear similar to some types of skin cancer.
Some people are more at risk of developing age spots, including people who:
- Are naturally light skinned
- Use tanning beds
- Work outdoors
- Have received extreme sunburns in the past
If you fit into one of these categories but haven’t yet developed age spots, it’s a good idea to start protecting your skin now. Unlike freckles or a sunburn, age spots do not immediately appear when you’re overexposed to sunlight. Instead, sunlight exposure over time can cause them to develop as you age.
This means if you have years of too much sun exposure but start adequately protecting your skin today, you still might not be able to completely prevent age spots. However, you will likely reduce their prevalence and severity when they do develop.