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Armed with curiosity and natural hunting instincts it is not uncommon for our favourite four legged friends to cross paths with a snake.

As snakes hibernate or are inactive during cold weather, snake bites usually occur in the summer months. Australia has a large number of venomous snakes but the tiger snake and brown snake account for the majority of snake bites in domestic pets.

Signs of Snake bite

Several factors will determine what sort of reaction your pet has to a snake bite. The type of snake (some species of snake are more venomous than others), the amount of venom injected (depends of the size and maturity of the snake) and the site of the snake bite are all contributing factors.

Dogs and cats are most often bitten around the head and limbs. Usually the closer the bite is to the heart the quicker the venom will be absorbed into the pet's system and distributed around the body.

At the beginning of summer, when snakes first come, their venom glands tend to be fuller and their bites at this time are much more severe. The length of time since the snake last struck can also be a contributing factor. The usual signs of snake bite by a tiger or brown snake are:

  • Sudden weakness followed by collapse.
  • Shaking or twitching of the muscles.
  • Vomiting.
  • Dilated pupils not responsive to light.
  • In the later stages paralysis may occur and your pet may have blood in his or her urine.

First Aid

If you suspect your pet has been bitten by a snake you should immobilise your pet and try to keep him/her as quiet as possible. It is vital that you take your pet to a veterinarian as quickly as possible. The sooner your pet is treated, the better their chances of survival.

If possible try to identify the snake, or get a description of its colour and approximate size, there are several types of antivenoms available and it will help us determine the correct one.

Veterinary Treatment

Firstly your veterinarian will examine your pet to determine whether it has been bitten, and will assess your pet to determine the stage of reaction and what treatment is required. If necessary we may use a snake bite detection test, which can determine from a blood or urine sample whether your pet has been bitten and by what type of snake.

Veterinary treatment varies slightly with each individual case, but usually consists of intravenous fluids and the administration of antivenom to neutralise the snake venom in the pet's body.

Antihistamines and other drugs may also be administered to minimise the risk of allergic reaction.

If your pet is given an antivenene for snakebite, it is only being used to neutralise the snake venom in your pet's system at that time. It does not protect your pet in future from further envenomation from a snake. Antivenene is not a vaccination or a preventative medication.


In some cases recovery from a snake bite occurs within 24 to 48 hours if your pet receives prompt veterinary attention.

Approximately 80% of pets survive snake bite if treated quickly. The survival rate is much lower however for pets that are left untreated, and death often occurs.

Pets recovering from snake bite often need intensive and prolonged nursing care until they make a full recovery.


Antivenom is produced by gradually immunizing horses to the venom of a species of snake. The horse's blood is then collected and the serum is separated and purified to make antivenom, containing specific antibodies to the toxins in the snake venom.

Snake antivenoms are expensive to produce and have limited shelf life; these factors are reflected in their high costs.

The deadly bite!

When a snake bites an animal it injects venom via the fangs into the tissue below the skin. Venom is rapidly absorbed from the site of the bite and carried mainly by the lymphatic system into the animal's circulation.

Snake venom carries a large range of toxins that damage tissues and impair many of the body's vital functions; they attack the nervous system and interfere with the body's clotting mechanisms.

Remember… if your pet is bitten DO NOT try to catch or kill the snake, all Australian snakes are protected and you may expose yourself to unnecessary danger.


Dogs are inquisitive by nature. When exercising them in bushland (particularly near water) or near beach dunes during the warmer months of the year, use a leash.

Cats are naturally born to hunt and stalk anything that moves. This unfortunately can lead to an unpleasant end, if he/she encounters a snake. If you live in the outer suburbs or semi-rural areas, keep your backyard clear of long grass, and remove any piles of rubbish. This will help to reduce the number of hiding spots for snakes to reside in.

What to do if you find a snake

Contact the National Parks and Wildlife Service 1300 361 967 who will refer you to a volunteer reptile remover. Our hospital keeps a list of snake catchers. The snake catchers are independent volunteers who provide a safety-related service for the public and a welfare-related service for native fauna.

For more comprehensive information on snakes, the dangers and keeping snakes as pets visit the Department of Environment and Heritage http://www.environment.nsw.gov.au/animals/Snakes.htm