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.
ByHealthwise Staff Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine Specialist Medical ReviewerSean P. Bush, MD, FACEP - Emergency Medicine, Envenomation Specialist
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