Wildlife Clinic

What to Do If a Person Is Bitten by a Venomous Snake

A suspected venomous snakebite is a medical emergency. The most important first aid is simple: get away from the snake, keep the person as calm and still as practical, remove constricting jewelry near the affected limb and get emergency medical care.

Explainer · 2 min

Animal Institute · Wildlife Clinic — approved by licensed RVS wildlife rehabilitator Chris Benson.

An eastern diamondback rattlesnake stretched out at the sandy edge of a trail, its diamond pattern and facial stripe clear.

Photo dvollmar (opens in a new tab), CC BY 4.0 (opens in a new tab)

Step away first. Distance is the only first aid that works before help arrives.

Call for medical help

Get to an emergency room. Do not delay to catch or kill the snake. A safe photograph from a distance can be useful, but treatment should not depend on bringing the animal to the hospital.

What not to do

Do not cut the wound, suck venom, apply ice, use electric shock or place a tourniquet. These methods do not improve outcome and can worsen tissue injury. Do not drink alcohol or take medications unless instructed by medical professionals.

Why symptoms cannot grade the bite

Some venomous bites inject little or no venom; others progress rapidly. Pain, swelling and bruising can change over time. The absence of dramatic early symptoms does not prove the bite is harmless.

What to do

> Safety note: This is general educational information, not individualized medical advice. A suspected venomous snakebite warrants immediate emergency medical evaluation.

The best snakebite kit is a phone and a fast route to appropriate medical care. Prevention is even better: distance, footwear, lighting and refusing to handle unidentified snakes.

Decision point

Is this happening right now?

Answer a few questions and you will get an answer for the animal in front of you, filtered to rehabilitators who may lawfully take it.

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