Many things can cause a bruise: minor injuries, falls, small collisions. While bruises may hurt, they’re usually harmless. But sometimes, they might be a sign of a deeper problem.
If you bump part of your body hard enough, you can break tiny blood vessels under your skin. But if you don’t break the skin, the blood has nowhere to go. It gets trapped under the skin’s surface, causing a bruise.
When you first get a bruise, the newly trapped blood makes it look pink or red. Over the next few weeks, the body naturally breaks down the blood and absorbs it. So as the bruise fades, it changes colors. This is part of the normal healing process. Some bruises can take weeks or months to heal….