Tick talk: Small pest, Big problem

By Zoe Levesque | Dated September 29, 2026

Tick paralysis is a serious and life-threatening condition affecting dogs and cats. This condition is caused by one or more paralysis ticks attaching to pets and injecting a toxin below the skin and into the bloodstream. These ticks are extremely prevalent in the northern parts of Sydney and, unfortunately, are very small, around 3-5 mm, when first attaching to pets. Ticks tend to attach particularly around the head, neck, ears, and between the toes, however, can attach anywhere on the body.

The early signs can be easy to miss. Your pet may seem quieter than usual, develop weakness in their back legs, or have difficulty walking. Other signs can include a change in their bark or meow, excessive drooling, difficulty swallowing, vomiting, or noisy or laboured breathing. As the condition progresses, paralysis can become more severe and may affect the muscles needed for breathing.

Treatment for tick paralysis includes administering tick anti-toxin serum and supportive care for multiple days in many cases. In severe cases, oxygen and assisted breathing may be required. 

While regularly checking pets for ticks is important, ticks can be very small when first attaching so prevention is critical. With many products available on the market, we recommend a monthly or 3-monthly treatment (chew or spot on) purchased from a vet or a reputable pet shop. A 12-monthly injection administered by a vet is also available for animals who may be difficult to medicate or if lifestyle makes regular medication difficult. 

If you find a tick or notice any unusual signs, contact your veterinary clinic promptly.