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Centipede and Millipede Bites

By

Robert A. Barish

, MD, MBA, University of Illinois at Chicago;


Thomas Arnold

, MD, Department of Emergency Medicine, LSU Health Sciences Center Shreveport

Reviewed/Revised Jun 2022 | Modified Sep 2022
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Although both centipedes and millipedes have segmented bodies, millipedes have two sets of legs per segment directly under their body, whereas centipedes have only one set of legs per segment positioned on the side of their body. Seen from the side, centipede bodies appear more flat and millipedes appear more rounded.

Some of the larger centipedes can inflict a painful bite, causing swelling and redness. Symptoms rarely persist for more than 48 hours. (See also Introduction to Bites and Stings Introduction to Bites and Stings Many creatures, including humans, bite when frightened or provoked. Others include Alligators and crocodiles Iguanas Mites Ticks read more .)

Millipedes do not bite but may secrete a toxin that is irritating, causing burning and itching of the skin and, particularly when accidentally rubbed into the eye, causing redness, swelling, and pain of the conjunctiva or the cornea.

An ice cube wrapped in plastic and a thin cloth and placed on a centipede bite usually relieves the pain.

Toxic secretions of millipedes should be washed from the skin with large amounts of soap and water. If a skin reaction develops, a corticosteroid cream should be applied.

Eye injuries should be flushed with water (irrigated) immediately.

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