West Highland White Terrier Lifespan & Health Guide
The typical West Highland White Terrier lives 13–15 years, with a median of 14 years.
The West Highland White Terrier is a small, sturdy Scottish terrier originally bred for hunting foxes, badgers, and vermin in the rocky Highland terrain. Their distinctive white double coat, compact muscular build, and confident carriage reflect a working dog that is tougher than it looks. Westies are known for their bold, independent personality, unwavering self-confidence, and surprising resilience — they are true terriers in a compact package with a friendly, entertaining disposition that has made them one of the most popular terrier breeds worldwide.
13–15
years lifespan
15–20
lbs (male)
10–11
inches tall (male)
high
energy level
How Long Do West Highland White Terriers Live?
West Highland White Terriers have a lifespan of 13–15 years, with a median of 14 years. The main health factors that affect how long a West Highland White Terrier lives:
- atopic dermatitis (skin allergies)
- Westie lung disease (idiopathic pulmonary fibrosis)
- Legg-Calve-Perthes disease
- patellar luxation
- craniomandibular osteopathy
Temperament
How Old Is Your West Highland White Terrier in Human Years?
Use our breed-specific calculator to find out, plus get personalised health and care guidance for your dog’s exact age.
Open West Highland White Terrier Age CalculatorWest Highland White Terrier Size & Weight
15–20 lbs
Male weight
13–18 lbs
Female weight
10–11″
Male height
9–10″
Female height
Size category: small · Group: Terrier
Common West Highland White Terrier Health Problems
Atopic Dermatitis (Skin Allergies)
West Highland White Terriers are one of the most allergy-prone breeds, with up to 50% of Westies developing atopic dermatitis during their lifetime. The condition is an inherited predisposition to develop allergic reactions to common environmental allergens including grass, pollen, dust mites, and moulds. The white coat and pink skin make irritation highly visible. Allergies cause chronic itching, secondary skin and ear infections, and significant discomfort that requires lifelong management.
Typical onset: 0.5–3 years
Idiopathic Pulmonary Fibrosis (Westie Lung Disease)
A progressive, irreversible lung condition where fibrous scar tissue replaces normal lung tissue, reducing the lungs' ability to exchange oxygen. This condition is uniquely prevalent in West Highland White Terriers and is considered the breed's most serious hereditary health concern. The disease progresses slowly over months to years, causing increasing exercise intolerance and respiratory distress. There is no cure, and management focuses on slowing progression and maintaining quality of life.
Typical onset: 9–13 years
Legg-Calve-Perthes Disease
A condition where the blood supply to the femoral head (the ball of the hip joint) is disrupted, causing the bone to die (avascular necrosis), collapse, and develop severe arthritis. Legg-Calve-Perthes is common in small terrier breeds including the Westie and typically affects young dogs. The condition causes progressive hind leg lameness, muscle wasting, and significant pain. Surgical removal of the damaged femoral head (FHO surgery) is usually curative.
Typical onset: 0.4–1 years
Patellar Luxation
Displacement of the kneecap from its normal position in the femoral groove, causing intermittent or persistent lameness. Patellar luxation is common in small breeds including the West Highland White Terrier. The condition is graded from I (occasional luxation that self-reduces) to IV (permanent luxation with severe disability). Chronic luxation leads to cartilage erosion, arthritis, and increasing pain.
Typical onset: 1–4 years
Craniomandibular Osteopathy (CMO)
A developmental bone disease affecting the skull and jaw in growing puppies, causing excessive bone growth on the mandible (jawbone) and occasionally the skull. The condition causes pain during eating and chewing, and affected puppies may have difficulty opening their mouth. CMO is most common in West Highland White Terriers and Scottish Terriers. The condition typically resolves on its own as growth completes, but the excessive bone may persist as palpable lumps along the jaw.
Typical onset: 0.25–0.75 years
Recommended Health Screenings
Breed-specific tests and evaluations recommended for West Highland White Terriers:
- Patellar luxation evaluation (OFA)
- Hip radiographs (Legg-Calve-Perthes screening)
- Dermatology consultation (allergy assessment)
- Chest radiographs (pulmonary fibrosis baseline)
- Ophthalmologic examination
Typical Veterinary Costs
West Highland White Terriers are generally rated high on the annual veterinary cost scale, based on breed-specific health risks, known chronic conditions, and typical screening requirements. Budget for preventative screenings and treatment of common breed-specific issues.
When Is a West Highland White Terrier Considered Senior?
West Highland White Terriers are generally considered senior at around 10 years of age. At this point, you should increase vet visits to twice yearly and watch for age-related health changes.
Check your West Highland White Terrier’s age in human years →West Highland White Terrier Exercise Needs
Adult West Highland White Terriers need 30–60 minutes of exercise per day. Adult Westies need regular daily exercise to maintain physical health and mental satisfaction. Despite their small size, they are active, hardy dogs that enjoy vigorous walks and outdoor activities. Earth dog trials, agility, and scent work are excellent outlets for their terrier instincts. Two good walks per day plus play sessions meet most Westies' needs. Mental stimulation through training and puzzle toys prevents boredom-driven barking and digging.
Cautions: always leash near traffic (prey drive); secure fencing essential; wipe paws after walks if allergic; avoid very hot pavement (small dogs are closer to the ground)
West Highland White Terrier Diet & Nutrition
Adult West Highland White Terriers typically eat 0.75–1.5 cups of high-quality adult formula for small breeds, limited ingredient if allergies present per day, split into 2 meals. Many Westies benefit from limited-ingredient or novel-protein diets to manage food-related allergy components. Discuss diet with your vet or veterinary dermatologist as part of an allergy management plan. Omega-3 fatty acid supplementation supports skin barrier function. Measure food precisely — Westies are small dogs where small over-portions cause meaningful weight gain. Avoid table scraps and high-fat treats. If skin allergies are severe, a prescription hypoallergenic diet may be recommended.
Key nutrients: lean animal protein, omega-3 and omega-6 fatty acids for skin and coat, zinc for skin health, probiotics for digestive and immune health, antioxidants for immune support
West Highland White Terriers should maintain a lean, compact body condition. Their double coat disguises body condition, so regular hands-on assessment is essential — feel for ribs through the coat and check for waist definition when the coat is wet or freshly groomed. Excess weight is particularly harmful for Westies: it worsens patellar luxation, increases respiratory demand (critical if pulmonary fibrosis develops later), and contributes to skin fold moisture that aggravates allergies. Treats should not exceed 10% of daily calories and should be hypoallergenic if the dog has food sensitivities.
West Highland White Terrier Dental Care
West Highland White Terriers are moderately prone to dental disease, typical of small breeds. Their compact jaws can lead to some tooth crowding, and plaque accumulates faster than in larger breeds. Daily brushing is important and should be established early. If craniomandibular osteopathy (CMO) was present during puppyhood, the jaw may have residual bony changes that can affect tooth alignment — discuss any concerns with your vet. Regular professional cleanings combined with at-home care provide the best prevention against periodontal disease.
West Highland White Terrier Coat & Grooming
Coat type
Double coat with harsh, wiry outer coat and soft dense undercoat; low shedding
Shedding
low
Energy
high
West Highland White Terrier Trainability
West Highland White Terriers are rated independent to train. They typically calm down around 28 months of age.