Health encyclopaedia

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Symptoms of Blisters

Blisters may be single or multiple. They occur when the skin rubs against another surface, causing friction, or when the skin is burnt. A tear occurs in the upper layer of skin, which forms a space between the layers. The surface of the skin remains intact and is pushed outwards as fluid from the blood seeps into the newly created space.

Blisters may be felt as a slightly bouncy swelling as the fluid pushes against the thin layer of skin. They may appear where you have felt rubbing against the skin, or where your skin has been burnt. Some blisters are painless, while some are tender to pressure.

Blood blisters are dark in appearance and are often more painful than normal blisters.

Infected blisters are filled with pus. There may also be redness around the blister, and the skin may feel hot and painful.

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