Everybody gets the occasional bruise on their arms or legs, and it’s normal not to remember the small injury that caused it. Bruises typically aren’t a big deal, and they usually go away within a week ...

You hit the shower after a good run and then notice them — those black-and-blue marks on your legs that you weren’t expecting. They may come from an actual injury, or from exercise-induced bruising.

Ramming a shin into a coffee table. Bumping a knee into that rod under your desk. Taking a tumble off a bike. These things tend to hurt like [redacted], so you probably won’t be surprised when you ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Waking up in the morning with a bruise you don't remember getting is not unusual. But if this starts to ...

A bump against a table corner or a fall while playing a spirited game of catch—life is full of these little encounters that slip by unnoticed, until the next morning when the skin reveals what wasn’t ...