Updated · Published by Radif Partners
Shih Tzu Lifespan: How Long Do They Live?
Everything you need to know about the Shih Tzu's life expectancy, factors that affect longevity, and tips to help your dog live a longer, healthier life.
The Shih Tzu belongs to the Toy group and originates from China. Adults typically weigh between 9 and 16 pounds, standing 9 to 10 inches at the shoulder. Life expectancy runs from 10 to 18 years, and the figures on this page describe that range rather than a single average, because the spread is what matters when you are deciding. Running costs settle around $91 a month once the dog is past puppyhood, before insurance and before anything unexpected. These numbers come from published breed standards and, where a standard is silent, from longevity and veterinary studies; they describe the breed as a population and not the dog in front of you. Line, upbringing, early socialisation and simple chance move an individual well away from the typical profile, and two dogs of the same breed often differ more than two dogs of different breeds. Nothing here is a diagnosis: for a specific animal, a veterinary surgeon who has examined it will always know more than a table.
Shih Tzu Life Expectancy
A Shih Tzu typically lives 10 to 18 years, average for a small-sized breed. Shih Tzus typically live 10 to 18 years, with many reaching their mid-teens. Their longevity is a testament to generations of selective breeding for robust health..
Owners can influence lifespan through diet, exercise, preventive healthcare, and maintaining a healthy body weight. Regular veterinary checkups catch potential issues early, when treatment is most effective.
Lifespan Range Visualization
Shih Tzu Lifespan by Gender
| Male | 10–18 years |
| Female | 10.5–18.5 years |
Gender differences in Shih Tzu lifespan are generally modest. Both male and female Shih Tzus benefit equally from quality nutrition, regular exercise, and consistent veterinary care. Spaying and neutering timing can influence longevity, and your veterinarian can recommend the optimal age based on your dog's individual health profile and the latest research for small breeds.
Factors That Affect Shih Tzu Lifespan
The lifespan of your Shih Tzu (10–18 year average) is shaped by:
- Genetics: Start with a dog from parents tested for Brachycephalic Airway Syndrome
- Feeding: Portion-controlled nutrition maintaining 9–16 lbs
- Exercise: Low exercise needs suit them perfectly for apartment life. A few short walks daily and indoor play sessions keep them happy and healthy.
- Veterinary partnership: Regular checkups with screening for Brachycephalic Airway Syndrome and other breed conditions
- Weight control: Lean body condition (ribs palpable, visible waist) can extend life by up to 2 years
- Grooming: Regular care of their long double coat coat supports skin health and allows early detection of lumps or skin changes
Tips to Help Your Shih Tzu Live Longer
Your Shih Tzu's longevity starts with daily habits (breed average: 10–18 years):
- Diet: Controlled portions to maintain 9–16 lbs, with attention to fat content given the breed's susceptibility to Brachycephalic Airway Syndrome
- Exercise: 50+ minutes daily, tailored to age and ability
- Preventive care: Current vaccinations, parasite control, and routine screenings
- Vet visits: Annual for adults, biannual for dogs over 8
- Coat care: Regular maintenance of their long double coat coat prevents skin problems
- Mental fitness: Training (trainability 3/5), play, and social interaction
- Vigilance: Don't ignore subtle changes, they may signal treatable conditions
Shih Tzu Life Stages and Aging
Understanding how the Shih Tzu ages helps owners provide stage-appropriate care that maximizes both quality and length of life. As a small-sized breed, the Shih Tzu progresses through life stages at a slower rate than larger breeds, often maintaining youthful energy and vitality well into what would be old age for bigger dogs.
Puppy stage (0–12 months): The foundation for a long, healthy life is laid during puppyhood. Proper nutrition formulated for small-breed growth, timely vaccinations, early socialization, and appropriate exercise all contribute to lifelong health. This is the ideal time to establish a veterinary relationship and baseline health records.
Adult stage (1–6 years): The Shih Tzu's prime years are characterized by stable energy, established temperament, and relatively low health risks when preventive care is maintained. Annual veterinary checkups, consistent exercise, dental care, and weight management at 9–16 lbs are the pillars of care during this stage.
Senior stage (6+ years): As the Shih Tzu enters the senior phase, increase veterinary visits to twice yearly. Watch for signs of age-related conditions including joint stiffness, vision or hearing changes, cognitive decline, and changes in appetite or energy. Adapt exercise to lower-impact activities, consider joint supplements, and adjust diet to senior-appropriate formulations.
Common Causes of Death in Shih Tzus
Understanding the leading causes of death in the Shih Tzu helps owners focus preventive efforts where they matter most. While individual outcomes vary, research and breed health surveys identify consistent patterns.
The breed's known health predispositions, including Brachycephalic Airway Syndrome, Keratoconjunctivitis Sicca, Patellar Luxation, contribute to mortality rates. Proactive screening for these conditions, particularly in the breed's later years, can detect problems early when treatment is most effective.
Cancer remains one of the leading causes of death across all dog breeds. Regular veterinary examinations that include palpation of lymph nodes and discussion of any lumps or behavioral changes help catch malignancies early. Maintaining a healthy weight throughout life reduces cancer risk, as does limiting exposure to environmental toxins.
Accidents and trauma are preventable causes of premature death. Keep your Shih Tzu on a leash or in a securely fenced area, ensure identification through microchipping and collar tags, and pet-proof your home and yard to eliminate hazards.
Shih Tzu Lifespan Compared to Similar Breeds
Comparing the Shih Tzu's 10–18 year lifespan to similar breeds provides useful context for prospective owners evaluating longevity as a factor in their breed decision.
| Breed | Lifespan | Size |
|---|---|---|
| Shih Tzu | 10–18 yrs | Small |
| Russian Toy | 12–14 yrs | Small |
| Rat Terrier | 12–18 yrs | Small |
| Lowchen | 13–15 yrs | Small |
| Basenji | 13–14 yrs | Small |
| Bolognese | 12–14 yrs | Small |
Frequently Asked Questions
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