A hematoma is a pooling of blood beneath the skin that forms after damage, like an injury or surgical procedure. Hematomas ...

Start the day smarter. Get all the news you need in your inbox each morning. A hematoma is a collection of blood related to a breakage of blood vessels. "This can occur due to injury or other ...

Eventually there is bleeding beneath the nail plate. Since the nail stays in place, blood collects beneath it and a hematoma forms. The increased pressure beneath the nail plate results in ...