Updated June 2026.
The Prague Ratter (Pražský krysařík) is one of the smallest dogs in the world: elegant, lively and very attached to its family. 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 Prague Ratter
The Prague Ratter is a very old breed from Bohemia (now the Czech Republic), where it was prized in medieval courts and also used for rodent control. Despite its tiny size, it is an alert, bright dog with a cheerful character.
Physical characteristics
| Country of origin | Czech Republic |
|---|---|
| Height | 20 – 23 cm |
| Weight | 1.5 – 3.5 kg |
| Coat | Short and glossy (black and tan, brown and tan, among others) |
| Role | Companion dog |
| Lifespan | 12 to 14 years |
Temperament and behaviour
The Prague Ratter is lively, cheerful and very attached to its family, as well as surprisingly brave for its size. Like all dogs, it needs early socialisation, clear routines and positive-reinforcement training to reach its full potential. Investing time, exercise and affection in its wellbeing is the best investment.
Common health problems of the Prague Ratter
Protecting your Prague Ratter’s health is essential. Because of its small size, it is worth paying attention to:
- Patellar luxation
- Dental problems
- Bone fractures (fragile bones)
- Eye problems
- Hypoglycaemia (in puppies)
These are breed predispositions; they must be confirmed by the Petplan veterinary team. This does not constitute a diagnosis.
Care and feeding
The Prague Ratter needs a balanced diet suited to its small size and age, with weight control and fresh water always available. Pay special attention to its dental hygiene, as well as nails and ears, and keep vaccinations and deworming up to date. Because of its fragility, avoid jumps and falls. Regular veterinary check-ups are key to catching any problem early.
Exercise and stimulation
The Prague Ratter needs daily walks and play suited to its size, plus mental stimulation through games, obedience or interactive toys. A dog that moves and “thinks” every day is a more balanced dog: the right amount of exercise prevents boredom, stress and weight gain.
Why Petplan is the best choice for your Prague Ratter
With Petplan health insurance you freely choose your vet and face accidents, illness and emergencies without cost making the decision for you. Get a no-obligation quote for your dog’s insurance and protect it throughout its life.
Frequently asked questions about the Prague Ratter
How long does a Prague Ratter live?
The life expectancy of the Prague Ratter is 12 to 14 years, especially with good care, a suitable diet and veterinary monitoring.
What health problems are most common in the Prague Ratter?
Its most common predispositions include: patellar luxation, dental problems and bone fractures. It is worth checking them with your vet.
How much does Prague Ratter insurance cost?
The price depends on age and location. You can get a free, no-obligation quote for your dog’s insurance with Petplan.
What does Petplan insurance cover for a Prague Ratter?
Depending on the plan, it covers accidents and illnesses, including diagnostic tests, surgery, hospitalisation and veterinary emergencies.
