I m a 23 year old girl. I have this dark dry bruises like on both front of my foot mostly on the sides. It doesn t hurt even if I touch it. I haven t been injured of anything. They just suddenly appeared. I forgot to mention I m kind of anemic since I was little. I was taking vitamins for iron back then. When I started growing up I stopped taking them. I also noticed that when I get disturb on my sleep or if I don t sleep early and stayed up late this dark dry bruises like appear. What could it be? And how should I treat it? Thank you.