Blood blister
Injury of subdermal tissues and blood vessels where damage does not pierce the skin / From Wikipedia, the free encyclopedia
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A blood blister is a type of blister that forms when subdermal tissues and blood vessels are damaged without piercing the skin. It consists of a pool of lymph, blood and other body fluids trapped beneath the skin. If punctured, it suppurates a dark fluid. Sometimes the fluids are cut off from the rest of the body and dry up, leaving behind dead cell material inside the blister with a texture like putty. Some blood blisters can be extremely painful due to bruising where the blister occurred.
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Blood blister | |
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On palm of right hand | |
Specialty | Dermatology |
Causes | Accident |
There are also blood blister-like aneurysms as these are known to be located in the supraclinoid internal carotid artery and have been recognized as having unique pathological and clinical features.[1]