Shih Tzu
The Shih Tzu is an ancient companion breed developed in Chinese imperial palaces, possibly from crosses between the Lhasa Apso and Pekingese. Their name means 'lion dog,' but their temperament is pure companion — affectionate, outgoing, and playful. Their luxurious double coat requires significant grooming commitment but produces one of dogdom's most distinctive looks.
10–18
years lifespan
9–16
lbs (male)
9–10.5
inches tall (male)
low
energy level
Temperament
How Old Is Your Shih Tzu 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 Shih Tzu Age CalculatorCommon Health Conditions
Brachycephalic Airway Issues
Mild breathing issues from short muzzle.
Typical onset: 1–4 years
Dental Disease
Small breeds prone to severe dental disease.
Typical onset: 1–3 years
Dry Eye (KCS)
Insufficient tear production.
Typical onset: 2–6 years
Renal Dysplasia
Inherited kidney malformation.
Typical onset: 0.5–3 years
Patellar Luxation
Kneecap displacement common in small/medium breeds.
Typical onset: 1–5 years
Lifespan Factors
The median lifespan for a Shih Tzu is 14 years. Key factors that influence longevity:
- BOAS (mild)
- dental disease
- eye injuries
- kidney disease
When Is a Shih Tzu Considered Senior?
Shih Tzus 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 Shih Tzu’s age in human years →