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Cottonmouth (Water Moccasin)

Photograph of a cottonmouth (water moccasin)

Source: U.S. National Park Service

The cottonmouth, also called a water moccasin, is a poisonous (venomous) snake found in southeastern and south central North America. They leave one, two, or three puncture marks on the skin, but you won't always see any marks.

Current as of: February 26, 2020

Author: Healthwise Staff

Medical Review:

William H. Blahd Jr. MD, FACEP - Emergency Medicine

Adam Husney MD - Family Medicine

Kathleen Romito MD - Family Medicine

Sean P. Bush MD, FACEP - Emergency Medicine, Envenomation Specialist

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