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Shih Tzu Health Issues

The Shih Tzu-specific conditions every Calgary owner should know. Brachycephalic breathing problems lead the list, followed by eye proptosis and corneal ulcers, severe dental disease, IVDD, and renal dysplasia. Read it, then take any concerns to your Calgary vet.

13 min read · Updated May 18, 2026
Author: LocalPetFinder Team

The short answer

Five Shih Tzu-specific conditions Calgary owners should know: brachycephalic airway syndrome (BOAS surgery commonly $3,500–$6,500), eye conditions (proptosis emergency, dry eye, corneal ulcers, cataracts), severe dental disease (very common, cleanings often every 6–12 months), IVDD (surgery commonly $5,000–$10,000), and renal dysplasia (kidney disease appearing by age 2–5). Shared toy-breed concerns: tracheal collapse (always harness, never collar), luxating patella, allergies, hypothyroidism. Most Calgary Shih Tzu owners benefit from pet insurance because these risk categories stack. This page is a planning reference, not medical advice; partner with a Calgary brachycephalic-experienced vet for diagnosis and treatment.

Before any Shih Tzu surgery or dental cleaning

Tell your vet your dog is brachycephalic. Shih Tzus carry elevated anesthesia risk due to their compressed airway anatomy. Recovery often needs careful monitoring, including extended intubation, oxygen support, and head elevation post-op. Ask: do you have brachycephalic anesthesia experience? If your vet hasn't handled many flat-faced breeds for surgery, ask for a referral to a Calgary brachycephalic-experienced specialty clinic before scheduling. The American Veterinary Medical Association documents the welfare implications of brachycephalic anatomy in its policy on acquired deformations.

Are Shih Tzus brachycephalic and what does that mean?

Yes. Shih Tzus are a brachycephalic (flat-faced, short-snouted) breed alongside Pugs, French Bulldogs, Boston Terriers, and Pekingese. Their compressed skull structure can cause Brachycephalic Obstructive Airway Syndrome (BOAS): elongated soft palate, narrow nostrils (stenotic nares), everted laryngeal saccules, hypoplastic trachea. The AKC Shih Tzu breed profile and the AVMA statement on acquired brachycephalic deformations both flag the breed's airway risks. Symptoms range mild (snoring, snorting, exercise intolerance, heat sensitivity) to severe (laboured breathing, gum colour changes during exercise, collapse). Calgary BOAS surgery (soft palate trim plus nostril widening) commonly runs $3,500–$6,500 at general practice, with specialty clinics often higher. For diagnosis and surgical planning, work with a Calgary brachycephalic-experienced vet or specialty clinic. Many Shih Tzus do well with management alone (avoid heat, harness not collar, keep weight low, no high-intensity exercise), but moderate-to-severe BOAS often benefits from surgery before age 4.

Calgary heat (May–September) is genuinely dangerous for moderate-to-severe BOAS Shih Tzus. Walk before 9 AM or after 7 PM in summer, skip midday outings on Nose Hill or Fish Creek Park trails, never leave a Shih Tzu in a hot car, and watch for excessive panting and gum colour changes.

What eye problems do Shih Tzus have?

Multiple. Shih Tzus have prominent eyes due to shallow eye sockets (beautiful, but vulnerable). The American Shih Tzu Club health page lists the breed's common eye conditions. Frequent problems:
(1) Proptosis. Eyeball pops out of socket from minor head trauma. True emergency: cover eye with damp cloth, ER vet within 30 minutes. Calgary repair surgery commonly $1,500–$3,000.
(2) Corneal ulcers from facial hair rubbing the eye. Keep hair trimmed short around the eyes; vet-prescribed drops treat the ulcer.
(3) Dry eye (KCS). Chronic insufficient tear production. Long-term tear-replacement and immunomodulator drops are prescribed and monitored by your vet.
(4) Cataracts. Common in seniors; surgery commonly $3,000–$5,000 per eye.
(5) Cherry eye. Third eyelid gland prolapse; surgical replacement commonly around $800 per eye.
(6) Distichiasis. Extra eyelashes scratching cornea.

Daily eye care: wipe corners with a damp soft cloth or sterile saline pad, keep facial hair trimmed back, schedule annual eye exams. Watch for redness, squinting, excessive tearing, or a blue or cloudy appearance. All of those warrant a same-day vet visit.

How serious is dental disease in Shih Tzus?

Severe and very common. Shih Tzus are consistently named among the highest-risk breeds for early periodontal disease, with most adult dogs showing some degree of dental disease by middle age. The Canadian Veterinary Medical Association dental care position covers the standard of care. Cause: a small jaw with the standard 42 dog teeth means crowding, retained baby teeth, and food trap pockets. Brachycephalic skull shape compounds the crowding. Many Shih Tzus need professional cleanings more often than the average breed (commonly every 6–12 months), with extractions of badly diseased teeth. Many seniors end up with no teeth at all and do fine with kibble softened in water. Calgary dental cleaning cost: $500–$1,500 depending on extractions. Lifetime dental care for a Shih Tzu often becomes the single largest health cost. Prevention: daily tooth brushing with dog-safe toothpaste from puppyhood, VOHC-approved dental chews, regular vet exams.

For full cost planning, our Shih Tzu cost of ownership Calgary guide breaks down the lifetime dental, surgical, and routine-care line items.

What is IVDD in Shih Tzus?

Intervertebral Disc Disease (IVDD) is herniation or rupture of the cushioning discs between vertebrae. Shih Tzus are predisposed due to their long-back/short-leg body shape (chondrodystrophic build, similar to Dachshunds and Corgis). The OFA overview of IVDD covers the genetic risk and screening. Symptoms: reluctance to jump, hunched back, yelping when picked up, sudden hindlimb weakness or paralysis. IVDD is a veterinary emergency when paralysis or loss of bladder control develops. Earlier surgical decompression tends to improve outcomes. Calgary surgical IVDD treatment commonly $5,000–$10,000 or more at a Calgary specialty neurology practice. Conservative management for mild cases is vet-directed and generally involves several weeks of strict crate rest plus prescribed anti-inflammatories. Prevention: do not let Shih Tzus jump on or off furniture (use ramps), keep them lean, support their back when picking up (one hand under chest, one under hindquarters).

What is renal dysplasia in Shih Tzus?

Renal (kidney) dysplasia is a congenital condition where kidneys develop abnormally. Shih Tzus are commonly cited among the higher-risk breeds. Symptoms typically appear by age 2 to 5: increased thirst and urination, weight loss, vomiting, lethargy, pale gums, ammonia-like breath. Diagnosis involves bloodwork (BUN, creatinine, SDMA), urinalysis, and abdominal ultrasound. Treatment is management-only and vet-directed: prescription kidney diets, subcutaneous fluids if dehydrated, and other supportive medications your vet may add. There is no cure. Calgary cost: roughly $200–$500 initial diagnostic workup, with ongoing monthly management costs that depend on stage. Many Shih Tzus with renal dysplasia live 1 to 3 years post-diagnosis with good management.

When evaluating senior Shih Tzus through Calgary rescues (Calgary Humane Society, AARCS, BARCS Rescue, Pawsitive Match), ask if recent bloodwork screened the kidneys. Our Shih Tzu adoption Calgary guide walks through what to ask rescues during meet-and-greets.

Do Shih Tzus get hypothyroidism?

Yes. Hypothyroidism is commonly reported in Shih Tzus, often in middle age. Symptoms: weight gain despite normal diet, lethargy, dry or flaky skin, hair loss (often symmetrical on flanks), cold intolerance, slow heart rate, recurrent skin and ear infections. Diagnosis is a thyroid panel run by your Calgary vet. Treatment, when indicated, is a daily oral thyroid replacement prescribed and dosed by your vet, with periodic bloodwork to confirm levels. Do not dose-shop or borrow human medication; this is a vet-only decision. If your senior Shih Tzu is gaining weight and slowing down, ask your vet for a thyroid panel before assuming “old age.”

Do Shih Tzus have skin and food allergies?

Frequently. Shih Tzus are commonly listed among the higher-risk breeds for atopic dermatitis (environmental allergies) and food allergies. Symptoms: itchy ears with recurrent infections, paw licking and chewing, red belly, groin or armpits, hair loss in patches, hot spots. Triggers can be environmental (pollen, dust mites, mould) or food (chicken, beef, dairy, and wheat are among the most-reported). Diagnosis can involve an elimination diet trial (often 8–12 weeks on a vet-prescribed novel-protein or hydrolyzed diet), allergy serology testing, and a skin scrape to rule out parasites. Treatment is vet-directed and may include prescription medications, medicated shampoos, omega-3 supplementation, antihistamines (limited effectiveness), and strict avoidance of food triggers. Do not start prescription allergy drugs without a vet exam. For refractory cases, a Calgary veterinary dermatologist is the right next step. Allergies are lifelong and management-focused, not curable.

Why do Shih Tzus need a harness instead of a collar?

Three reasons. First, brachycephalic airway anatomy means any tracheal pressure is risky during exercise or excitement. Second, Shih Tzus are prone to tracheal collapse alongside Pomeranians and Yorkies, and collar pressure can accelerate the damage. Third, eye proptosis risk: a sudden leash jerk on a collar can pop an eye out of its socket given the shallow Shih Tzu eye socket and short snout. Use a back-clip or vest-style harness for daily walks on Nose Hill, Edworthy Park, or your neighbourhood favourite. Front-clip harnesses are fine for training, but watch for chest pressure. Collars are okay for ID tags and city licence tags only, never for leash attachment. See our Pomeranian health guide for the full tracheal collapse breakdown.

Do Shih Tzus get luxating patella?

Yes. Luxating patella is commonly reported in Shih Tzus, with vets grading it 1 to 4. Calgary luxating patella surgery commonly $3,000–$5,000 per knee with a board-certified surgeon. Many Grade 1 to 2 cases are managed without surgery using weight control, vet-directed joint support, and limited high-impact activity (no jumping off furniture, which also reduces IVDD risk). Your vet decides the grade and the plan. See the Pomeranian health guide for the grade-by-grade breakdown.

How does Calgary weather affect Shih Tzus?

Significantly. Brachycephalic breeds struggle at both temperature extremes.

Hot weather (above 22°C): Shih Tzus cannot pant efficiently due to a compressed airway. Heat exhaustion can happen fast. Avoid midday walks May through September, including Bow River pathway and Fish Creek Park. Watch for excessive panting, gum colour changes, and collapse.

Cold weather (below 5°C): brachycephalic dogs cannot warm air efficiently before it reaches the lungs. Below -10°C, limit walks to 10 to 15 minutes, use a winter coat, and wipe paws after to remove sidewalk salt.

Calgary chinook winds (rapid temperature swings) trigger flare-ups in some allergic Shih Tzus. Dry winter air also worsens dry eye and skin conditions in this breed.

What should I keep on hand for a Shih Tzu emergency?

A Shih Tzu emergency kit:
(1) Sterile saline eye flush and clean gauze (for corneal ulcers and proptosis events).
(2) Pet first aid kit with vet wrap, antiseptic, and tweezers.
(3) Phone numbers saved in your phone: your regular vet, a Calgary 24-hour emergency clinic, and the Pet Poison Helpline at 1-855-764-7661.
(4) Current photo of your dog with weight noted (Shih Tzu weight matters for medication dosing).
(5) Carrier or harness within easy reach.
(6) Pet insurance details or vet-financing info, since brachycephalic surgery, IVDD surgery, and proptosis repair often run several thousand dollars or more.

Should I get pet insurance for my Shih Tzu?

Most Calgary Shih Tzu owners benefit from pet insurance because the breed stacks several expensive risk categories: brachycephalic surgery, IVDD surgery, eye conditions, luxating patella, frequent dental work, allergy management, and renal dysplasia management. Many Shih Tzus end up exceeding their lifetime premium contributions in vet costs. Enrol before symptoms appear, because pre-existing conditions are excluded across every Canadian provider. Calgary monthly premiums for a young healthy Shih Tzu commonly sit in the $35–$60 range, depending on deductible and coverage tier. For a detailed provider-by-provider breakdown, our Shih Tzu pet insurance Calgary guide walks through what to look for and what to budget. The Shih Tzu cost of ownership Calgary guide ties premiums to lifetime cost.

Frequently Asked Questions

Are Shih Tzus brachycephalic?

Yes. Compressed airway causes BOAS (snoring, exercise intolerance, heat sensitivity). Calgary BOAS surgery $3,500–$6,500 at specialty. Avoid heat, harness not collar, keep weight low.

Shih Tzu eye problems?

Proptosis (eyeball pops out, ER within 30min, $1.5–$3K), corneal ulcers, dry eye/KCS (lifetime drops), cataracts, cherry eye, distichiasis. Daily wipe + trim facial hair + annual eye exams.

Shih Tzu dental disease?

Very common in the breed. Many Shih Tzus need cleanings every 6–12 months ($500–$1,500 Calgary). Daily brushing is essential. Your vet sets the interval.

IVDD in Shih Tzus?

Long back, short legs: predisposed. Calgary surgery commonly $5,000–$10,000 or more. Use ramps, keep lean, support back when picking up.

Renal dysplasia?

Congenital kidney disease. Symptoms by age 2–5: thirst, weight loss, vomiting. Manage with prescription kidney diet, fluids, meds. 1–3 year prognosis post-diagnosis.

Hypothyroidism?

Commonly reported in middle age. Symptoms: weight gain, lethargy, hair loss. Diagnosis and lifelong daily thyroid replacement are vet-directed.

Skin/food allergies?

Frequent. Itchy ears, paw licking, hot spots. Treatment is vet-directed and lifelong; a Calgary veterinary dermatologist helps with refractory cases.

Harness or collar?

Always back-clip harness. Brachycephalic + tracheal collapse risk + eye proptosis risk. Collar for ID only.

Luxating patella?

Commonly reported in the breed. Calgary surgery commonly $3,000–$5,000 per knee. Grade 1 to 2 often managed without surgery.

Calgary weather?

Hot >22°C: heat exhaustion fast, avoid midday walks. Cold <-10°C: short walks, winter coat. Chinook winds trigger allergy flare-ups.

Emergency kit?

Saline eye flush, first aid, ER vet numbers, Pet Poison Helpline 1-855-764-7661, photo + weight, carrier, insurance/financing.

Pet insurance for Shih Tzus?

Most owners benefit. Brachycephalic, IVDD, eye, dental, orthopedic, and allergy risks stack. Calgary premiums commonly $35–$60/month for a young healthy Shih Tzu. See our dedicated pet insurance guide.

Reverse sneezing (snorting/honking)?

Very common in brachycephalic Shih Tzus. 5–30 second snorting episodes, harmless. Calm + stroke throat + cover nostrils to trigger swallow. Worry only if >60s, blue gums, or pattern shifts to chronic dry honking (tracheal collapse).

Picky eater Shih Tzu?

Dental pain until proven otherwise (very common in the breed). Vet exam first. If dental is clear: 48-hour treat reset, scheduled meals, walk away if uneaten. Bone broth or canned topper. Refusing food >24 hours = vet visit.

Is my Shih Tzu overweight?

Lean target 10–13 lbs male, 9–12 lbs female. Should feel ribs easily, see waist tuck. Extra weight worsens BOAS, IVDD, patella, anesthesia. Measure kibble, treats <10% of calories.

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