Dog Tools

Shih Tzu Age Calculator

Calculate your Shih Tzu’s age in human years and get personalised health, nutrition, and life stage information.

Shih Tzu Age Chart — Dog Years vs Human Years#

020406080Human Years024681012141618Dog Age (years)

Shih Tzu Health Conditions#

Renal Dysplasia

life_threateningModerate
Typical onset:0.5–3 years

Inherited kidney malformation.

Prevention: Early urine screening.

Symptoms: excessive drinking, weight loss, poor growth

Brachycephalic Airway Issues

moderateCommon
Typical onset:1–4 years

Mild breathing issues from short muzzle.

Prevention: Maintain healthy weight. Avoid heat.

Symptoms: snoring, heat sensitivity

Dental Disease

moderateVery Common
Typical onset:1–3 years

Small breeds prone to severe dental disease.

Prevention: Daily brushing. Annual professional cleanings.

Symptoms: bad breath, red gums, loose teeth

Patellar Luxation

moderateCommon
Typical onset:1–5 years

Kneecap displacement common in small/medium breeds.

Prevention: Maintain healthy weight. Surgery for severe grades.

Symptoms: intermittent skipping, holding up hind leg

Dry Eye (KCS)

moderateCommon
Typical onset:2–6 years

Insufficient tear production.

Prevention: Managed with cyclosporine drops.

Symptoms: thick discharge, red eyes

Shih Tzu Growth Chart#

AgeWeight RangeNotes
2 months1.3–3.2 lbsEarly growth phase
4 months3.1–7.2 lbsAbout 40% of adult weight
6 months5–10.4 lbsAbout 60% of adult weight
9 months6.8–13.1 lbsNearing adult height
1 year7.6–14.7 lbsNear adult size
1.5 years8.5–15.7 lbsApproaching maturity
2 years9–16 lbsFull adult weight

Healthy adult males 9-16 lbs. Maintain lean body condition.

Shih Tzu Life Stages#

puppy

0mo – 6mo

Active Shih Tzu puppies. Critical development and socialization phase.

socializationhousetrainingbite inhibitionbasic commands

adolescent

6mo – 1yr

Shih Tzu adolescents testing independence. Consistent training important.

obedience trainingimpulse controlleash manners

young adult

1yr – 3yr

Shih Tzu reaches physical maturity. Settling into adult temperament.

dental careweight managementcontinued training

adult

3yr – 7yr

Prime adult years for Shih Tzu. Maintain health and activity level.

weight controldental cleaningshealth screening

mature adult

7yr – 10yr

Beginning to slow. Shih Tzus age gracefully with proper care.

biannual vet visitsdental careweight monitoring

senior

10yr – 14yr

Senior Shih Tzu may show age-related changes. Monitor breed-specific health concerns.

pain managementmobility supportcognitive enrichment

geriatric

14yr – end of life

Focus on comfort and quality of life.

comfort carequality of life assessment

Dental Milestones#

0.75moBaby teeth begin erupting
3moTeething begins — baby teeth start falling out
4.5moAdult premolars and molars emerging
7moAll 42 adult teeth should be in place
2yrTartar buildup may begin
3yrDental disease risk increases significantly

Severe dental crowding. Among highest dental disease rates. Daily brushing non-negotiable.

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