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Cauliflower ear, also known as perichondrial hematoma, is a swelling of the ear caused by a blood clot. This blood clot causes tissue damage that leads to a lumpy appearance that is said to resemble a cauliflower.
Typically, those at risk can prevent the sorts of injuries that lead to this condition by wearing protective headgear.
The ear is particularly vulnerable to this sort of injury because it protrudes from the head. The blood supply to the cartilage that supports the ear and keeps its shape is provided by the overlying skin.
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