Actinic keratosis and seborrheic keratosis are both common skin conditions, and while they certainly sound similar, they are quite different in how they can impact one’s health. Mainly, seborrheic keratosis is a noncancerous skin growth and poses no risk of turning into skin cancer, unlike actinic keratosis. Seborrheic keratosis, though it can be irritating and sometimes unsightly, does not require treatment. Actinic keratosis should be treated to reduce the risk of it turning into skin cancer.