Rat Terrier Care Guide

PetMD calls Rat Terriers athletic and playful — feisty, funny dogs that need an appropriate outlet for their energy — and says they need plenty of physical and mental stimulation; the breed standard's own phrase is full of energy. Plan on a real daily outing plus active play rather than a slow lap of the block, because a dog bred to work vermin through a farm day is not tired out by a stroll.

The standard's job description — hunting vermin above and below ground, coursing small game (American Kennel Club) — is a description of prey drive, and it is intact in pet dogs. PetMD warns that Rat Terriers may view pocket pets as prey and urges early socialisation for that reason. Keep this dog on lead wherever small animals move fast, because a chase already in progress is not a recall problem you win by asking politely.

An earth-working terrier digs, so the fence has to be solid at the bottom as well as tall enough. Buried wire, a paver footing, or a dug-in apron along the fence line all work, because with this breed the escape almost always happens under the boundary, not over it.

Spend the drive, do not suppress it. PetMD lists agility, obedience, flyball, scent work, swimming, jogging and hiking as good fits. Quarry sports that send a dog to ground suit the job description in the standard almost exactly, so they are worth asking your local club about. Short training sessions and food puzzles cover the thinking half when the weather does not cooperate.

A bored Rat Terrier does not sit quietly and wait for you. It appoints itself a job — excavating the lawn, patrolling the fence with commentary, dismantling something soft — so real work is simply the cheaper option.

This maps where risk sits across the Rat Terrier as a breed, not a verdict on any individual dog; anything you notice at home belongs in front of a veterinarian who can examine it.

The starting position is good: the Rat Terrier Club of America's health statement describes Rat Terriers as generally hardy dogs that can enjoy a long, healthy life, and PetMD puts typical life expectancy at 12 to 18 years.

The Rat Terrier Club of America requires the five tests of the Canine Health Information Center programme it participates in: a cardiac evaluation, hip dysplasia screening, a patellar luxation examination, Legg-Calve-Perthes screening, and a primary lens luxation DNA test. Ask for those five on both parents, as documented results rather than as verbal reassurance.

Understand this before you need it, because it becomes an emergency. The lens is held by fine ligaments; when those weaken or break it dislocates (VCA Animal Hospitals). A lens that falls forward blocks fluid drainage and causes glaucoma; VCA calls anterior luxation extremely painful and capable of causing permanent blindness, treatable only by surgical removal of the lens.

The primary form comes from a variant in the ADAMTS17 gene, inherited codominantly, so dogs with two copies are at highest risk and one copy raises it far less (Cornell University College of Veterinary Medicine). Cornell puts typical onset between three and eight years. Treat as urgent a red eye, a sudden change in pupil size or shape, squinting, cloudiness, pawing at the eye, or increased tearing: VCA Animal Hospitals' instruction is to call your veterinarian immediately if you see any changes.

Patellar luxation — a kneecap that slips out of its groove — and hip dysplasia are both on the required panel (Rat Terrier Club of America), and PetMD names both. A skipping step, a brief hind-leg hop, or a leg carried for a stride deserves a veterinary gait assessment rather than a wait-and-see, because severity is graded on examination and management differs by grade.

Legg-Calve-Perthes is also on the required panel (Rat Terrier Club of America), and PetMD names it among the breed's conditions, so a puppy that limps persistently deserves a veterinary examination rather than a wait-and-see.

Cardiac evaluation is a required screen (Rat Terrier Club of America) and PetMD lists cardiac disease among the breed's concerns, so have the heart listened to at every annual visit. PetMD also names chronic allergies and skin sensitivity, so recurring itching, ear inflammation or paw-licking earns a work-up to find the trigger.

The club adds issues it calls uncommon but worth monitoring, not currently tracked in the screening database: seizure disorders, intervertebral disc disease risk linked to the chondrodystrophy variants, Cushing's disease and Addison's disease. That is a short list for a purebred: a health-tested pedigree, a lean body weight and a yearly veterinary examination do more for a Rat Terrier's long life than any single precaution.