My sister obtained a bruise on her leg yesterday with purple spots. Today the bruise has worsened. It has come out of nowhere. She says she hasnt hit it off anything, it just appeared. When she was younger she had some sort of disease that old women are supposed to get not children. It was like a cut that got infected inside the body and caused multiple bruising on her legs. We cant remember the name for it but we fear that this bruise could be the start of that again. Would you know anything about this?