« Previous Page
are the most widely known of the pit vipers (family Viperidae). They are found throughout the United States and parts of Canada and account for most poisonous (venomous) snakebites in North America. They leave one, two, or three puncture marks on the skin, but you won't always see any marks.
Rattlesnakes can be up to8 ft (2.5 m) long and have:
Symptoms of a rattlesnake bite usually appear from minutes to hours after a bite and can include:
If you think you have been bitten by a rattlesnake,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
To learn more about Healthwise, visit Healthwise.org.
© 1995-2018 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.