Final answer:
Hematoma is a condition characterized by a large amount of bleeding into the tissues surrounding a puncture site, especially in a patient who takes anticoagulant medication. It occurs when blood vessels tear and hemorrhage, resulting in the formation of clotted blood at the site of the injury.
Step-by-step explanation:
Hematoma is a condition characterized by a large amount of bleeding into the tissues surrounding a puncture site, especially in a patient who takes anticoagulant medication. It occurs when blood vessels tear and hemorrhage, resulting in the formation of clotted blood at the site of the injury. The clotting process seals the severed blood vessels, but the tissue deprived of nutrients begins to die. This condition can occur in various parts of the body, including the brain, where it is known as a hemorrhagic stroke.