Dog Bitten by a Snake? Clinical Symptoms & What You Should Do

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Most humans have an innate fear of snakes, but if you've ever seen a dog encounter a serpent, you may have been surprised to see that they don't share our phobia. In fact, dogs have a playful curiosity that can quickly result in an unhappy dog bitten by a snake.

Learn more about some of the most common signs that your dog has been bitten and how to treat a snake bite on a dog if it does happen. Time plays a critical role in your dog's health should you ever find yourself in this situation.

Clinical Signs of a Dog Bitten by a Snake

It's simple enough if you actually see the bite, but snake bite symptoms can be tricky to discover in a furry dog. One of the most common sites that a snake bites is the dog's face. Signs often develop within 30 minutes of a bite, and a swollen muzzle is a telltale sign. Dual puncture wounds can be evidence of fangs, and they may ooze red or red-tinged liquid. Swelling is also common, and local discoloration may occur given enough time. If the bite was venomous, shock may set in, and it may present symptoms in the form of:

  • Pale gums
  • Mental dullness
  • Exaggerated respiration
  • Collapsing
  • Tremors
  • Slow breathing
  • Excessive drooling

Rapid and progressive weakness can be a common and frightening thing for pet parents to witness.

One thing to remember: Snakes that are poisonous to people are not only poisonous to dogs (and cats) but are typically more dangerous because most pets have a much smaller body size than the average person.

Dog growls at a large rat snake in the grass.

Was Your Dog Bitten by a Snake? Here's What to Do

Snake envenomation can pose real danger. If you saw the snake bite your dog, you should take immediate action. While there is no way of knowing if envenomation has occurred after simply witnessing the bite, knowing which steps to take should your dog be bitten is vital:

  1. Remove your dog from the snake as quickly as possible. If the snake is still present, make sure to avoid getting bitten yourself.
  2. If you have your phone with you, try and take a picture of the snake to help the veterinarian identify the species, and in the case of a venomous snake, what type of venom it might have.
  3. Promptly carry the dog to the car and head to the veterinarian.
  4. Call the vet to let them know you're on your way. If you know the snake species already, share this information so that they can adequately prepare.
  5. Keep the bite site below heart level, if possible.
  6. Try to keep your pup, as well as yourself, calm. Our pets feed off our anxiety so keeping calm is essential.

Getting to the vet promptly is your number one concern. Try not to get distracted by taking on any first aid tactics. According to a peer-reviewed article in Clinical Techniques in Small Animal Medicine, first aid measures have not been shown to prevent morbidity or mortality following snake bites in dogs.

Diagnosing a Dog Bitten by a Snake

There are over 3,000 species of snakes worldwide, and over 600 of these are venomous, according to National Geographic. Vipers, pit vipers, rattlesnakes, sea snakes and coral snakes all pose a threat to dogs and humans alike. If you are unable to identify the snake species that bit your dog, your vet's expertise in assessing and treating your pup is even more important.

If you aren't sure what type of snake bit your dog, the vet will apply treatment based upon the observation of bite wounds and the presence of compatible clinical signs. There is no veterinary lab test to check for the presence of venom, but your vet will want to run lab work to determine the extent of any damage to the internal organs and blood cells.

How to Treat a Snake Bite on a Dog

Different bites may be treated with a combination of antihistamines and anti-inflammatory medications, antibiotics, anti-venom (when appropriate) and fluid therapy to counter potential hypotension or shock. Artificial ventilation may also be warranted if your dog's respiratory distress is not alleviated with medications.

Although only 0.06% of people die following a snake bite, almost a third of dogs do. What makes a dog likely to survive? The site of the bite is important, as dogs with bites on limbs and tails tend to fare better than dogs with bites to the face or body. If the bite occurs on the face, the tongue or the throat, swelling is a serious side effect that can prove deadly if the airway becomes obstructed. Other factors that may influence survival include the dog's size and the time that lapses between the bite and veterinary intervention.

Source: Veterinary Clinics of North America: Small Animal Practice

Preventing Dog Snake Bites

If you live in a region that has a known species of poisonous snakes, you may be particularly cautious to keep your dog from getting bitten by a snake. Here are some helpful tips to keep your dog from getting bitten:

  • Don't let your dog dig or stick their head underneath rocks, trees or other places that snakes like to hide.
  • Do not let them swim in grassy areas of water where water snake nests might exist.
  • When walking your dog out in the bush, try your best to stay on trails and do not let your dog wander too far from your side. If you notice them trying to sniff at something, pay careful attention. Snakes tend to not attack unless they feel that they are in danger. A curious pup sniffing this strange creature could be seen as a threat.
  • Also, keep in mind that snakes are cold-blooded creatures, which means that they regulate their body temperature with the environment around them. This could mean avoiding cool areas on hotter days or warm spots on cooler days.
  • Consider using pet-safe snake repellent in your yard, especially if you live near a body of fresh water.
  • Eliminate items that attract sources of food for snakes. For example, bird feeders may attract rodents that eat the fallen seeds. Pay attention to anything in your yard that might attract small animals like mice or rabbits.
  • Snakes track their prey based on vibrations. Large amounts of vibration will scare them away. If you encounter a snake, try stomping loudly to scare them away. However, try not to get to close to avoid getting bitten yourself.

Should you notice that your dog is showing signs of a snake bite, remember to contact your veterinarian as soon as possible. Immediate action can save your dog's life.

Contributor Bio

Dr. Laci Schaible

Dr. Laci Schaible, DVM, CVJ

Dr. Laci Schaible is a small animal veterinarian, entrepreneur, author, and speaker. A graduate of Texas A&M University College of Veterinary Medicine and Wake Forest University School of Law, Dr. Schaible is passionate about progressive change in the veterinary industry and serves as an advisor on a number of boards within the field.

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