Can u bruise your heart?

Yes : Yes you can, but it typically require major trauma to the chest to cause it, like a car accident or a sport accident....

Yes Called CONTUSION: Auto accidents with impact from the steering wheel are the most common cause of this type of injury. Other causes include animal kicks, falls, impact from a projectile or blast injuries. Attention is turned to obvious injuries and the contusion may not be initially considered. It can be fatal.