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scab
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Close-up of a person holding a child's hand with scabs on the fingers, gently cleaning the wounds with gauze.
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scab

medicine
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Close-up of a person holding a child's hand with scabs on the fingers, gently cleaning the wounds with gauze.
How Do Scabs Form?Injuries that break skin can be painfully memorable.
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scab, in pathology, secondary skin lesion composed of dried serum, blood, or pus. See wound.

The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Meg Matthias.