Blood blister
Blood Blister
A Blood Blister (pronunciation: /blʌd ˈblɪstər/) 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 bodily fluids trapped beneath the skin.
Etymology
The term "Blood Blister" is derived from the Old English word "blæstre", meaning a swelling or a sore, and the word "blood", which is of Germanic origin.
Causes
Blood blisters are commonly caused by forceful rubbing, pinching or bruising of the skin. This can occur during physical activities, such as exercise or manual labor, or as a result of wearing ill-fitting shoes. Certain medical conditions, such as dermatitis, can also cause blood blisters.
Symptoms
The primary symptom of a blood blister is a raised, fluid-filled bump on the skin that is red or black in color. The blister may be painful or tender to the touch. Other symptoms can include swelling and redness around the blister.
Treatment
Treatment for blood blisters primarily involves protecting the blister from further damage. This can be achieved by covering the blister with a bandage or dressing, and avoiding activities that could cause the blister to burst. If the blister does burst, it is important to keep the area clean to prevent infection.
Related Terms
External links
- Medical encyclopedia article on Blood blister
- Wikipedia's article - Blood blister
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