Bruise on breast and stomach
Unexplained bruises accompanied by itching are often a sign of a serious condition in the liver known as primary biliary cirrhosis. It could also be the result of a local reaction on the skin. In some cases, you may experience this as a sudden change of color that looks like a big bruise in your breast or stomach. Your best course of action will be to immediately go to see the doctor for proper diagnosis and care.