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Blister
Blisters are typically caused by friction, pressure, or rubbing against the skin, which can cause the outer layer of the skin to separate from the underlying tissue and fill with fluid. The fluid inside a blister is called serum, which is a clear, watery fluid that is similar in composition to blood plasma.
Blisters are typically caused by friction, pressure, or rubbing against the skin, which can cause the outer layer of the skin to separate from the underlying tissue and fill with fluid. The fluid inside a blister is called serum, which is a clear, watery fluid that is similar in composition to blood plasma.