Bruised lip? Bruised anything. As we get older - at least in my case - my skin got thinner and bruised easily. I went to a dermatologist and he prescribed antifungal plus steroid crèmes. They didn't help. In my case the problem got so bad that my own perspiration would attack the skin to the point of breaking it open. Something to look forward to:)
I really wouldn't know how that happened but I do not expect that it is heart related.