super dry legs

My legs are always super dry. I always forget to moisturize but I do a couple times a week but they're so dry! I don't really get ashy since I'm kinda pale but I have patches of pink dry skin. I've had this problem a couple times but they're small. Does anyone know why I have EXTREMELY dry skin? Or is it just me being super irresponsible and not moisturizing 🤦🏻‍♀️🤦🏻‍♀️🤦🏻‍♀️ and I do drink a lot of water (:  They're also VERY itchy I can't stop scratching