The Newfoundland — the “Newfie” — is one of the most genuinely gentle and capable giant breeds in existence. Developed in Newfoundland, Canada, as working dogs for fishermen, Newfs have webbed paws, a thick water-resistant double coat, and a powerful build that makes them among the strongest swimmers in the canine world. Their instinct to rescue people from water is not trained — it is innate and deeply embedded in the breed. On land, they are calm, patient, devoted, and famously good with children. They also carry a serious cardiac condition and a breed-specific kidney disorder that every prospective owner must understand.
Quick Facts
| Characteristic | Detail |
|---|---|
| Size | Giant (males: 69–74 cm / 60–70 kg; females: 63–69 cm / 45–55 kg) |
| Coat | Thick, dense, oily double coat — black, brown, white-and-black (Landseer), or grey. Heavy shedding |
| Exercise | 1–2 hours per day — moderate; swimming is ideal exercise |
| Lifespan | 8–10 years (typical of giant breeds) |
| Good for families? | Exceptional — one of the best giant breeds with children |
| Puppy cost (UK 2026) | £800–£3,500 |
| KC group | Working |
Health — Key Conditions
Subaortic Stenosis (SAS)
SAS is the most important heart condition in the breed — a congenital defect where the area below the aortic valve narrows, forcing the heart to pump harder:
- Detectable in puppies from as young as 16 weeks — heard as a heart murmur on stethoscope examination
- Severity ranges from mild (murmur only, normal lifespan) to severe (exercise intolerance, fainting, sudden death)
- Definitive diagnosis: echo-Doppler examination by a veterinary cardiologist, measuring blood flow velocity across the aortic valve
- Cardiac screening of both parents by a veterinary cardiologist is essential — ask breeders for cardiologist certificates. The Newfoundland Club health scheme requires cardiac assessment
- Mildly affected dogs can live normal lives with monitoring; severely affected dogs require medication and activity restriction
Cystinuria (CU)
A breed-specific genetic kidney disorder causing excessive cystine in the urine, leading to crystal and stone formation in the urinary tract:
- Males are far more severely affected due to their narrower, longer urethra — stones can cause life-threatening urinary obstruction as early as 5–6 months
- Symptoms in males: straining to urinate, blood in urine, urinary blockage (emergency)
- Females can carry and excrete excess cystine but are less likely to obstruct
- DNA test available and critically important — ask for cystinuria DNA test results for both parents before purchasing any Newfoundland puppy
- Management for affected dogs: low-protein diet, increased water intake, and urinary alkalinisation can reduce stone formation
Dilated Cardiomyopathy (DCM)
Approximately 10% of Newfoundlands develop DCM — the heart muscle thins and enlarges, reducing pumping efficiency:
- Often clinically silent until advanced — dogs may show fatigue, coughing, or collapse as first signs
- Regular cardiac screening from age 2 (annual echocardiogram) is recommended for breeding dogs and advisable for all Newfs
- Treatment: pimobendan, ACE inhibitors. Early detection extends comfortable life
Hip and Elbow Dysplasia
BVA/KC hip and elbow scoring essential given the breed’s massive weight. Puppy exercise management until 18–24 months is critical — controlled lead walks, swimming (excellent low-impact exercise), avoiding jumping and stairs. Lean body weight throughout life.
Water Rescue Heritage
Newfoundlands are natural water rescue dogs — several UK organisations train Newfs for sea rescue demonstrations and water safety. Their webbed paws, oily waterproof coat, powerful swimming stroke, and calm temperament in water make them exceptional at towing people to safety. If you have access to safe swimming water, allowing your Newfoundland to swim regularly is the single best form of exercise for the breed. Many Newfoundland clubs organise water work sessions — an outstanding bonding activity.
FAQs
How much drool should I expect?
A significant amount. Newfoundlands are among the heaviest-drooling breeds. They drool particularly around mealtimes, after drinking, after exercise, and in warm weather. Drool towels around the house are standard Newfoundland equipment. If drool is a deal-breaker, this is not the breed for you — and that is a perfectly valid reason to look elsewhere. The Landseer (white-and-black) variety drools the same amount as black or brown Newfs.