If you’ve ever injured your fingernail or toenail, you may have noticed blood pooling under the nail bed’s surface. This bruising is called a subungual hematoma. It’s usually caused by a crushing or ...
A perianal hematoma is a collection of blood that has leaked from a burst blood vessel around the anus. They appear as a bruised-looking bump near the anus, and can be uncomfortable or painful. People ...
A bruise usually involves damage to skin and tissue in the body, which results in swelling and skin discoloration. A hematoma is caused by damage to the blood vessels, which causes blood to pool in ...