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.
Water moccasins can be up to
2 m (6 ft) long and
Distinctive white colouring inside the
Pit-like depressions behind the nostrils.
triangular head with slit-shaped pupils and fangs.
A single row of
plates or scales on the undersurface of the snake, including the tail.
Symptoms of a cottonmouth bite usually appear from minutes to
hours after a bite and can include:
Severe, immediate pain with rapid
Discoloration of the skin.
Difficult or rapid
Changes in heart rate or rhythm.
rubbery, or minty taste in the mouth.
Numbness or tingling around
the mouth, tongue, scalp, feet, or the bite area.
ByHealthwise Staff Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine Anne C. Poinier, MD - Internal Medicine Adam Husney, MD - Family Medicine Kathleen Romito, MD - Family Medicine