Waking up in the morning with a bruise you don't remember causing is not unusual for anybody. But if this starts to happen more and more often, or if you start to develop bruises from seemingly minor ...

You've had a bump, blow, or knock to your body that was hard enough to damage small blood vessels under your skin. Blood leaks out of these blood vessels, called capillaries, and seeps into the ...

"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 ...