Juan Moyano/Stocksy United Lots of things in our body change with age. But one thing you might not have expected to change is the color of your skin around your genitals. Like anything, this change usually doesnât happen overnight. Instead itâs gradual â so gradual, in fact, that you might not notice it right away. But then one day you do, and you find yourself wondering: Is everything OK? Yes, itâs normal Itâs perfectly normal for the skin of your labia, scrotum, and anus to be darker than the skin elsewhere on your body. This darkening is called hyperpigmentation.