Pug Shih Tzu Mix: The Complete Chug-Tzu Breed Guide

The Pug Shih Tzu mix — sometimes called a Pug-Tzu — is a small designer crossbreed that combines two of the most popular companion dogs in the world. Both parent breeds were historically raised as royal lap dogs, so it's no surprise their offspring tend to be affectionate, people-oriented, and firmly committed to couch life. But mixing a brachycephalic Pug with a long-coated Shih Tzu creates a wider range of possible outcomes than many prospective owners expect.

This guide breaks down the real-world variability of the Pug Shih Tzu mix: what traits you can reasonably predict, what's a genetic coin flip, and what health screenings matter most. Whether you're considering a puppy from a breeder or evaluating a rescue, you'll have the specifics you need to make an informed decision.

Parent Breed Breakdown: Pug Meets Shih Tzu

Understanding any mixed breed starts with understanding its parents. The Pug and Shih Tzu share some traits — small size, brachycephalic (flat) faces, companion-dog temperaments — but they differ significantly in coat, energy level, and specific health vulnerabilities.

Parent Breed Comparison: Pug vs. Shih Tzu

Trait	Pug (AKC Standard)	Shih Tzu (AKC Standard)
Origin	China (ancient breed, favored by Chinese emperors; later popularized in England)	China/Tibet (bred in Chinese imperial courts; possibly crossed with Pekingese and Lhasa Apso)
Weight Range	14–18 lb (6.4–8.2 kg)	9–16 lb (4.1–7.3 kg)
Height	10–13 in (25–33 cm)	9–10.5 in (23–27 cm)
Coat	Short, smooth, double coat	Long, flowing, double coat (hair-like, not fur)
Shedding	Moderate to heavy (surprisingly high for short coat)	Low shedding, but high-maintenance grooming
Energy Level	Low to moderate — short bursts of activity, then naps	Low — content with short walks and indoor play
Trainability	Moderate — can be stubborn, responds to food motivation	Moderate — intelligent but independent; patience required
Lifespan	13–15 years	10–18 years
Key Health Risks	Brachycephalic obstructive airway syndrome (BOAS), obesity, pug dog encephalitis (PDE), eye injuries	BOAS, hip dysplasia, renal dysplasia, eye conditions (progressive retinal atrophy, dry eye)

Both breeds are recognized by the American Kennel Club and belong to the Toy Group. Their shared brachycephalic structure is the single most important health factor to understand before bringing home any Pug Shih Tzu mix.

Generations Explained: F1, F1B, F2, and Multigen

Most Pug Shih Tzu mixes available from breeders are F1 crosses. Because neither parent breed is a "doodle-type" dog with a strong low-shedding gene (like the Poodle's curly coat gene), backcrossing is less common in this mix than in Labradoodles or Goldendoodles. If a breeder advertises an F1B Pug-Tzu, ask which parent breed was used for the backcross — backcrossing to a Shih Tzu tends to produce a longer, lower-shedding coat, while backcrossing to a Pug produces a shorter, heavier-shedding coat.

Size Range: How Big Will a Pug Shih Tzu Mix Get?

Because both parent breeds are small, the Pug Shih Tzu mix stays compact. However, the Pug is typically heavier-boned and denser than the Shih Tzu, so there's meaningful variation even within a single litter.

Pug Shih Tzu Mix Size Estimates by Generation

Generation	Weight Range	Height (at withers)	Build Tendency
F1	10–18 lb (4.5–8.2 kg)	8–13 in (20–33 cm)	Variable — some lean toward Pug's stocky frame, others toward Shih Tzu's lighter build
F1B (backcross to Pug)	13–20 lb (5.9–9.1 kg)	10–14 in (25–36 cm)	Stockier, broader chest, shorter legs
F1B (backcross to Shih Tzu)	8–15 lb (3.6–6.8 kg)	8–11 in (20–28 cm)	Lighter frame, slightly longer body
F2 / Multigen	10–18 lb (4.5–8.2 kg)	9–13 in (23–33 cm)	Highly variable within litters

At 8 weeks old, a Pug-Tzu puppy typically weighs between 2 and 4 lb (0.9–1.8 kg). You can roughly estimate adult weight by doubling the weight at 12 weeks, though this is imprecise for mixed breeds. Most Pug-Tzus reach full adult size by 10–12 months.

Coat Types and the Hypoallergenic Question

This is where the Pug Shih Tzu mix becomes genuinely unpredictable. The two parent breeds have dramatically different coats, and a puppy can inherit anything along that spectrum.

Possible Coat Outcomes

• Short and smooth (Pug-dominant): Dense, short double coat. Fawn or black are the most common colors. This coat type sheds moderately to heavily year-round, with seasonal increases in spring and fall.
• Long and flowing (Shih Tzu-dominant): Silky, hair-like double coat that grows continuously. Requires daily brushing and professional grooming every 4–6 weeks. Low shedding but high maintenance.
• Medium-length wavy (blended): A mix of both — shorter than a Shih Tzu but longer than a Pug, often with a slight wave. Moderate shedding. This is the most common F1 outcome, though it's not guaranteed.

Is the Pug Shih Tzu Mix Hypoallergenic?

Color Possibilities

Pug-Tzus can come in fawn, black, gold, white, brindle, liver, or combinations of these. Fawn with a black mask (the classic Pug coloring) and gold-and-white (the classic Shih Tzu pattern) are the most common. Rare color combinations like solid liver or brindle-and-white do appear but are less predictable.

Temperament: What to Expect (and What to Watch For)

Both parent breeds were developed as companions, so the Pug Shih Tzu mix almost always has a strong desire to be near people. Beyond that core trait, temperament varies based on which parent's personality dominates and how the dog is socialized during the critical 3–14 week window.

Best-Case Temperament

A well-socialized Pug-Tzu is playful without being hyperactive, affectionate without being clingy, and generally friendly with strangers, children, and other dogs. They tend to be alert enough to bark at the doorbell but not prone to excessive vocalization. Many owners describe them as "comedic" — a trait inherited from the Pug side — with a penchant for head tilts, snorting, and following their humans from room to room.

Challenging Scenarios

• Stubbornness in training: Both Pugs and Shih Tzus rank lower on working/obedience intelligence scales (Stanley Coren's classification places both in the "fair" working intelligence category). This doesn't mean they can't learn — it means they need shorter, more motivating training sessions with high-value treats.
• Separation distress: Companion breeds are prone to separation anxiety if left alone for long periods. A Pug-Tzu left alone for 8+ hours daily may develop destructive behaviors or excessive barking.
• Small-dog reactivity: Some individuals inherit the Shih Tzu's wariness of unfamiliar dogs, particularly larger ones. Early positive socialization with dogs of all sizes is essential.
• House-training difficulty: Small breeds are notoriously slower to house-train due to smaller bladders and, sometimes, a reluctance to go outside in cold or wet weather. Plan for 4–6 months of consistent crate training and scheduled potty breaks.

Temperament Variability Chart

Temperament Trait Spectrum: Pug Shih Tzu Mix

Trait	Pug-Leaning	Balanced Mix	Shih Tzu-Leaning
Sociability with strangers	Very outgoing, greets everyone enthusiastically	Friendly but may take a few minutes to warm up	Polite but reserved; may stay close to owner
Energy / Playfulness	Bursts of zoomies, then crashes hard	Moderate play sessions, adapts to owner's schedule	Calm, prefers gentle play and lap time
Trainability	Food-motivated, learns quickly if treats are involved	Moderate — responds to positive reinforcement with patience	Independent; may choose to ignore commands
Vocalization	Snorts, grunts, occasional barking	Moderate barking at triggers	More prone to alert barking
Tolerance of being alone	Low — thrives on constant companionship	Moderate — can handle 3–4 hours with proper conditioning	Moderate — somewhat more independent

Health Considerations: The Hybrid Vigor Myth and Real Risks

One of the most persistent claims about designer dogs is that mixing two breeds automatically produces a healthier dog through "hybrid vigor" (heterosis). The reality is more nuanced.

What Hybrid Vigor Actually Means

According to veterinary geneticists, heterosis refers to the measurable health advantage that occurs when two genetically distant populations are crossed — reducing the expression of recessive genetic disorders that are concentrated within closed breed gene pools. The Pug and Shih Tzu, however, are both small brachycephalic breeds with some overlapping health risks. Their genetic distance is moderate, not extreme, so the hybrid vigor effect is modest at best.

A Pug Shih Tzu mix is not guaranteed to be healthier than either parent breed. What is true: the mix may have a lower probability of inheriting breed-specific recessive conditions that are unique to one parent (such as Pug dog encephalitis), provided the parents were health-tested. But shared conditions — particularly those related to brachycephalic structure — remain fully on the table.

Health Conditions to Screen For

Key Health Risks in the Pug Shih Tzu Mix

Condition	Inherited From	Prevalence Estimate	Screening Method
Brachycephalic Obstructive Airway Syndrome (BOAS)	Both parents	High — most Pug-Tzus will have some degree of airway narrowing	Veterinary respiratory assessment; functional grading system (Cambridge BOAS grading)
Patellar Luxation	Both parents	Moderate — estimated 5–10% in small breeds	Orthopedic exam; OFA patella evaluation
Hip Dysplasia	Shih Tzu (higher prevalence)	Low to moderate — approximately 6–12% in Shih Tzus per OFA data	OFA or PennHIP radiographic screening
Eye Conditions (PRA, dry eye, corneal ulcers)	Both parents	Moderate — brachycephalic eye structure increases injury risk	CERF/OFA ophthalmologist evaluation; Schirmer tear test
Pug Dog Encephalitis (PDE)	Pug	Low in mixes — recessive condition, requires two copies of risk allele	DNA test available; responsible Pug breeders screen for this
Renal Dysplasia	Shih Tzu	Low — estimated 2–4% in Shih Tzus	No standard screening; family history review
Intervertebral Disc Disease (IVDD)	Both (chondrodystrophic tendency)	Low to moderate	No standard pre-breeding screen; maintain healthy weight to reduce risk
Obesity	Pug (strong genetic predisposition)	High — Pugs are among the most obesity-prone breeds	Body condition scoring (BCS); regular weigh-ins

For more on inherited conditions in small breeds, the Merck Veterinary Manual provides detailed breed-predisposition data. Always consult your veterinarian about an individualized health monitoring plan for your dog.

Grooming, Exercise, and Daily Care

Grooming Requirements by Coat Type

Grooming Schedule Based on Inherited Coat Type

Coat Type	Brushing	Professional Grooming	Bathing	Estimated Annual Grooming Cost
Short/Pug-like	2–3 times per week (rubber curry brush or bristle brush)	Not required	Every 4–6 weeks or as needed	$100–$200 (shampoo, tools)
Medium/wavy blend	3–4 times per week (slicker brush + comb)	Every 6–8 weeks (trim and tidy)	Every 3–4 weeks	$500–$800
Long/Shih Tzu-like	Daily (pin brush, slicker brush, detangling spray)	Every 4–6 weeks (full clip or show cut)	Every 2–3 weeks	$800–$1,400

Regardless of coat type, all Pug-Tzus need regular attention to these areas:

• Facial folds: If your Pug-Tzu inherits the Pug's deep facial wrinkles, clean them daily with a damp cloth or veterinary-recommended wipe (e.g., Squishface Wrinkle Wipes, ~$12/pack) to prevent yeast and bacterial infections.
• Eyes: Brachycephalic breeds have prominent eyes prone to drying and injury. Check daily for discharge, redness, or squinting. Keep hair trimmed around the eyes if the coat is long.
• Ears: Clean weekly with a vet-approved ear cleanser. Floppy ears (common in this mix) trap moisture and increase infection risk.
• Nails: Trim every 2–3 weeks. If you hear clicking on hard floors, they're too long.
• Teeth: Daily brushing with enzymatic dog toothpaste (e.g., Virbac C.E.T., ~$10/tube). Small breeds are disproportionately affected by periodontal disease — the AVMA estimates that 80% of dogs show signs of dental disease by age 3.

Exercise Requirements

The Pug Shih Tzu mix is a low-to-moderate energy dog. Plan for:

• 30–45 minutes of daily activity, split into two or three short walks (10–15 minutes each)
• Indoor play sessions — fetch, tug, or puzzle toys work well for mental stimulation
• Avoid exercise in heat: Brachycephalic dogs overheat rapidly. When outdoor temperatures exceed 80°F (27°C), walk in early morning or evening, keep sessions short, and always carry water. Watch for excessive panting, blue-tinged gums, or collapse — these are veterinary emergencies.

A well-fitted harness (not a collar) is strongly recommended for walks. Collars put pressure on the trachea, which is already compromised in brachycephalic dogs. The Ruffwear Front Range Harness (~$40) or the Blue-9 Balance Harness (~$35) are solid options that distribute pressure across the chest.

Cost: What You'll Pay for a Pug Shih Tzu Mix

Purchase Price

Pug Shih Tzu Mix Pricing by Source

Source	Price Range	What's Typically Included
Responsible breeder (health-tested parents, F1)	$800–$2,000	Health clearances, first vaccinations, deworming, microchip, health guarantee (1–2 years), spay/neuter contract
Casual/backyard breeder	$400–$800	Often no health testing, minimal veterinary care, no guarantee
Rescue / shelter adoption	$150–$400	Spay/neuter, vaccinations, microchip, behavioral assessment

Pug-Tzu mixes are less common in breed-specific rescues than purebred Pugs or Shih Tzus, but they do appear in general small-dog rescues and municipal shelters. Check Petfinder and local humane societies — you may find an adult Pug-Tzu for a fraction of breeder pricing, with the added benefit of known temperament and size.

First-Year Cost Estimate

Estimated First-Year Costs for a Pug Shih Tzu Mix

Expense Category	Low Estimate	High Estimate
Purchase / adoption	$150	$2,000
Veterinary care (initial exams, vaccines, spay/neuter if not included)	$400	$1,200
Food (high-quality small-breed formula, ~1 cup/day)	$250	$500
Grooming (varies widely by coat type)	$100	$1,400
Supplies (crate, harness, bed, toys, bowls)	$200	$500
Pet insurance (optional but recommended)	$350	$700
Training (group classes or private sessions)	$100	$600
Total first year	$1,550	$6,900

Annual ongoing costs after the first year typically range from $1,200 to $3,500, depending on grooming needs, insurance coverage, and any emerging health conditions.

Who Is the Pug Shih Tzu Mix Best Suited For?

This mix is a strong fit for specific lifestyles and a poor fit for others. Here's a practical breakdown:

Ideal Owners

• Apartment dwellers: Small size and low exercise needs make the Pug-Tzu well-suited to apartments and condos. They're not typically excessive barkers, which helps with shared-wall living.
• Work-from-home individuals or retirees: This breed thrives on companionship and does best with someone home for most of the day.
• Families with older children (8+): Pug-Tzus are generally gentle and tolerant, but their small size and delicate eye structure make them vulnerable to rough handling by toddlers and very young children.
• First-time dog owners: Their manageable size, moderate energy, and generally forgiving temperament make them a reasonable choice for beginners — provided the owner commits to positive reinforcement training and early socialization.
• Multi-pet households: Most Pug-Tzus coexist peacefully with other dogs and even cats, especially when raised together.

Less Ideal Situations

• Long work hours away from home: If you're regularly gone 8+ hours, a Pug-Tzu is likely to develop separation distress. Consider a dog walker or daycare, or reconsider the breed.
• Hot climates without A/C: Brachycephalic dogs are at genuine risk of heatstroke. If you live in the Southeast or Southwest US and spend significant time outdoors, this mix requires careful management.
• Households seeking a hypoallergenic dog: As discussed above, this mix is not hypoallergenic. Consider a Poodle mix or Portuguese Water Dog instead.
• Owners wanting a highly obedient or sport-competition dog: While Pug-Tzus can earn trick titles and enjoy basic agility, they are not built for competitive obedience or endurance sports.

Frequently Asked Questions

What two breeds make up the Pug Shih Tzu mix?

The Pug Shih Tzu mix is a cross between a purebred Pug and a purebred Shih Tzu. Both are AKC-recognized Toy Group breeds with origins in Chinese imperial courts. The mix is sometimes called a Pug-Tzu or, less commonly, a Chug-Tzu (though "Chug" more often refers to a Chihuahua-Pug mix).

How big will my Pug Shih Tzu mix get?

Most adult Pug-Tzus weigh between 10 and 18 lb (4.5–8.2 kg) and stand 8–13 inches (20–33 cm) tall at the shoulder. Exact size depends on which parent the puppy favors and the generation of the cross. Ask your breeder for the specific weights of both parent dogs for the best estimate.

What will the temperament be like?

Expect an affectionate, people-oriented companion dog with moderate energy. Most Pug-Tzus are playful, enjoy short walks and indoor games, and bond closely with their families. Individual temperament varies — some lean toward the Pug's outgoing goofiness, while others inherit the Shih Tzu's calmer, more reserved demeanor. Early socialization (weeks 3–14) has a major impact on confidence and adaptability.

Is the Pug Shih Tzu mix hypoallergenic or low-shedding?

No. Neither parent breed carries low-allergen coat genetics. A Pug-Tzu with a Shih Tzu-dominant coat will shed less than one with a Pug-dominant coat, but neither type is hypoallergenic. Allergy sufferers should spend time with the specific dog before committing.

What health issues might this mix inherit?

The most significant shared risk is brachycephalic obstructive airway syndrome (BOAS), which affects breathing and heat tolerance. Other conditions to screen for include patellar luxation, hip dysplasia, eye disorders (progressive retinal atrophy, dry eye, corneal ulcers), obesity, and — from the Pug side — Pug dog encephalitis. Reputable breeders health-test both parent dogs; always ask for OFA/CERF documentation.

How much does a Pug Shih Tzu mix cost?

From a responsible breeder, expect to pay $800–$2,000 for a health-tested F1 puppy. Adoption from a rescue typically costs $150–$400. First-year total expenses (including veterinary care, food, grooming, and supplies) range from approximately $1,550 to $6,900 depending on your choices and the dog's grooming needs.

How long do Pug Shih Tzu mixes live?

With proper care, most Pug-Tzus live 12–15 years. Some individuals reach 16–18 years, particularly those that maintain a healthy weight and receive regular veterinary preventive care. Obesity significantly shortens lifespan in small breeds — keeping your Pug-Tzu at a lean body condition score (BCS 4–5 out of 9) is one of the most impactful things you can do for longevity.

Are Pug Shih Tzu mixes easy to train?

They're moderately trainable with the right approach. Use positive reinforcement (treats, praise, play) and keep sessions short — 5 to 10 minutes, two to three times daily. Both parent breeds respond poorly to harsh corrections or force-based methods, which tend to shut them down rather than motivate them. Force-free, reward-based training consistently produces better results with companion breeds. For structured guidance, consider a group puppy class through a local AKC-affiliated training club.