Also called liver spots, these small dark patches often show up in places that get lots of sun, like your face, hands, shoulders, and arms. They’re more common if you’re over 50, but you can get them if you’re younger and you spend a lot of time outside. They don’t require treatment, but your doctor may take a sample to make sure it isn’t cancer. They can lighten them with bleaching products or remove them if you want. To prevent them, use sunscreen and avoid the sun.