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Are there any adverse health affects caused by chewing your fingernails?

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Wiki User
01/14/2008

Paronychia is the most common hand infection seen in the United States. It is most often caused by nail biting. It is most often caused by either the Staphylococcus aureus bacteria. The first symptoms may include redness, swelling, or warmth in the skin surrounding the affected nail. It could even become serious enough to need antibiotics or to have a portion of the nail removed.