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Home > Health Library > Cottonmouth (Water Moccasin)
Thecottonmouth, 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.
Water moccasins can be up to6 ft (2 m) long and have:
Symptoms of a cottonmouth bite usually appear from minutes to hours after a bite and can include:
If you think you have been bitten by a water moccasin,call 911 or other emergency services immediately.
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineAdam Husney, MD - Family MedicineKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerSean P. Bush, MD, FACEP - Emergency Medicine, Envenomation Specialist
Current as ofNovember 20, 2017
Current as of:
November 20, 2017
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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