Cottonmouth (Water Moccasin)

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: June 26, 2019

Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Anne C. Poinier, MD - Internal Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine

Is it an emergency?

If you or someone in your care has chest pains, difficulty breathing, or severe bleeding, it could be a life-threatening emergency. Call 9-1-1 or the local emergency number immediately.
If you are concerned about a possible poisoning or exposure to a toxic substance, call Poison Control now at 1-800-567-8911.

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