Updated June 2026.
The Rat Terrier is one of the most popular dog breeds. In this guide we cover its origin, temperament, care and the conditions it is most prone to, to help you look after its health.
Origin and history of the Rat Terrier
An American terrier bred for hunting and pest control, the result of crossing Fox Terrier, Bull Terrier, Manchester Terrier and Old English White Terrier, among others. In the Midwest it was crossed with Whippets and Italian Greyhounds to produce a faster dog able to control the jackrabbit plague. It is energetic and playful, with the intelligence and sense of humour typical of terriers, and very bonded to its people.
Physical characteristics
| Country of origin | United States |
|---|---|
| Height | 25 – 46 cm |
| Weight | 4 – 11 kg |
| Coat | Short and smooth; tricolour and others |
| Role | Ratting terrier |
| Lifespan | 15 to 18 years |
Temperament and behaviour
The Rat Terrier is energetic, lively, intelligent and very attached to its family. Like any dog, it needs early socialisation, clear routines and positive, reward-based training to develop a balanced character. Giving it time, exercise and attention strengthens the bond with the family.
Common health problems of the Rat Terrier
Protecting your Rat Terrier’s health is essential. These are some of the conditions the breed is most prone to:
- Patellar luxation
- Hip dysplasia
- Legg-Calvé-Perthes disease
- Heart problems
- Eye problems
Indicative list of breed predispositions, to be validated by Petplan’s veterinary team. It is not a diagnosis.
Care and feeding
The Rat Terrier needs a balanced canine diet suited to its size and age, with weight control and fresh water always available. Look after its dental hygiene, brushing according to its coat, nails and ears, and keep up with vaccinations and deworming. Regular veterinary check-ups are key to catching any problem early.
Exercise and stimulation
The Rat Terrier needs daily walks and exercise to match its energy, plus mental stimulation through games, obedience or interactive toys. A dog that moves and «thinks» every day is a more balanced dog: the right exercise prevents boredom, stress and excess weight.
Why Petplan is the best choice for your Rat Terrier
With Petplan health insurance you freely choose your vet and face accidents, illnesses and emergencies without cost making the decision for you. Get a free, no-obligation quote for your dog and protect it throughout its life.
Frequently asked questions about the Rat Terrier
How long does a Rat Terrier live?
The life expectancy of the Rat Terrier is 15 to 18 years, especially with good care, a proper diet and veterinary follow-up.
What health problems are most common in the Rat Terrier?
Its most common predispositions include: patellar luxation, hip dysplasia, legg-calvé-perthes disease, heart problems, eye problems. Discuss them with your vet.
How much does Rat Terrier insurance cost?
It depends on age and area. You can get a free, no-obligation quote for your dog with Petplan.
What does Petplan insurance cover for a Rat Terrier?
Accidents and illnesses, including diagnostic tests, surgery, hospitalisation and veterinary emergencies, with free choice of vet across Spain.
Learn more about Petplan pet insurance.
