Causes
By Mayo Clinic staffMost boils are caused by Staphylococcus aureus, a type of bacteria commonly found on the skin and inside the nose. Boils sometimes develop at sites where the skin has been broken by a small injury or an insect bite, which gives the bacteria easy entry.
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- Steckelberg JM (expert opinion). Mayo Clinic, Rochester, Minn. May 2. 2013.
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