Frenchie Shih Tzu Mix: The Complete French Bull Tzu Breed Guide
Everything you need to know about the Frenchie Shih Tzu mix — size, temperament, coat types, health risks, grooming, costs.
If you've been researching the Frenchie Shih Tzu mix — sometimes called the French Bull Tzu — you've stumbled onto one of the more unusual designer crosses in the small-dog world. This blend pairs the bat-eared, clownish French Bulldog with the ancient, flowing-coated Shih Tzu, and the result is a compact companion dog with a personality that can swing anywhere between its two very different parent breeds.
Before you commit to a Frenchie Shih Tzu mix puppy, there's a lot to unpack: variable coat types, real health concerns inherited from both parents, and a temperament that's charming but not always predictable. Here's an honest, detailed breakdown based on what we know about both parent breeds and how their traits tend to show up in mixed offspring.
Parent Breeds: French Bulldog Meets Shih Tzu
Understanding any designer mix starts with understanding its foundation breeds. The Frenchie Shih Tzu mix draws from two dogs that were bred for very different purposes — and that matters when you're trying to predict what your puppy will grow into.
| Trait | French Bulldog | Shih Tzu |
|---|---|---|
| AKC Group | Non-Sporting | Toy |
| Origin | France (1800s, from English toy bulldogs) | China (ancient breed, royal companion) |
| Weight | 16–28 lb (7–13 kg) | 9–16 lb (4–7 kg) |
| Height | 11–13 in (28–33 cm) | 9–10.5 in (23–27 cm) |
| Coat | Short, smooth, single coat | Long, flowing, double coat |
| Shedding | Moderate | Low shedding, high maintenance |
| Energy Level | Low to moderate | Low |
| Lifespan | 10–12 years | 10–18 years |
| Primary Health Concerns | BOAS, IVDD, hip dysplasia, heat intolerance | Brachycephalic issues, eye conditions, renal dysplasia |
| Temperament | Playful, stubborn, alert, people-oriented | Affectionate, outgoing, sometimes aloof with strangers |
The French Bulldog is a brachycephalic (flat-faced) breed known for its muscular build, bat-like ears, and comical personality. They're notoriously stubborn but deeply bonded to their people. The Shih Tzu, also brachycephalic, carries itself with more regal bearing and was bred purely as a lap companion for Chinese royalty. Both breeds are low-energy, people-focused dogs — which is good news for the mix — but their physical structures and coat types couldn't be more different.
Understanding Generations: F1, F1B, and Beyond
Designer dog breeders use generation labels to describe how a cross was produced. Here's what you'll encounter with Frenchie Shih Tzu mixes:
- F1 (First Generation): One purebred French Bulldog × one purebred Shih Tzu. Maximum genetic diversity, but highest trait variability — puppies in the same litter can look and behave very differently.
- F1B (Backcross): An F1 Frenchie Shih Tzu mix bred back to one of the parent breeds (usually the Shih Tzu to reduce brachycephalic severity, or the Frenchie to increase stockiness). More predictable in one parent's direction.
- F2 (Second Generation): Two F1 Frenchie Shih Tzu mixes bred together. Trait predictability actually decreases here because recessive genes from both breeds recombine unpredictably.
- Multigen (F3+): Multiple generations of Frenchie Shih Tzu mixes bred together. Rare for this particular cross — most breeders stick to F1 or F1B because the market for this mix is small.
Key takeaway: For the Frenchie Shih Tzu mix, F1 is the most common generation you'll find. This means expect significant puppy-to-puppy variation even within one litter.
Unlike the Labradoodle or Goldendoodle, which have well-established multigen breeding programs, the Frenchie Shih Tzu mix remains a niche cross. Most puppies available are F1, meaning one parent is a registered purebred Frenchie and the other is a registered purebred Shih Tzu. This is worth asking breeders about directly — request documentation of both parents' breeds and any health testing performed.
Size, Build, and Physical Appearance
One of the most common questions prospective owners ask: How big will a Frenchie Shih Tzu mix get? The honest answer is that there's a meaningful range, especially in F1 litters.
| Measurement | Small End (Shih Tzu–Leaning) | Large End (Frenchie–Leaning) |
|---|---|---|
| Weight | 10–14 lb (4.5–6.4 kg) | 18–25 lb (8–11.3 kg) |
| Height at Shoulder | 9–10 in (23–25 cm) | 11–13 in (28–33 cm) |
| Body Build | Leaner, slightly longer legs | Stockier, barrel-chested, shorter legs |
| Head Shape | Moderately flat face, smaller muzzle | Flatter face, broader skull, possible Frenchie "frog" stance |
Most Frenchie Shih Tzu mixes land in the 12–20 lb (5.4–9 kg) range as adults, making them a small but sturdy dog. Their build depends heavily on which parent's structure dominates. Frenchie-leaning puppies tend to inherit the wider chest, shorter legs, and more muscular frame, while Shih Tzu–leaning puppies are lighter-boned with a slightly longer topline.
One trait that's fairly consistent: the ears. Frenchie Shih Tzu mixes often develop semi-erect or "rose" ears — not fully upright like a Frenchie's bat ears, but not fully dropped like a Shih Tzu's. Some puppies inherit one of each, which gives them a distinctive, slightly asymmetric look.
Coat Types and Grooming Requirements
Is the Frenchie Shih Tzu mix hypoallergenic or low-shedding? The short answer: maybe, but you won't know until the coat comes in. Neither parent breed is a heavy shedder, but their coat types are polar opposites, and F1 puppies can inherit anything in between.
| Coat Type | Inherited From | Shedding Level | Grooming Frequency |
|---|---|---|---|
| Short, smooth, single coat | French Bulldog | Low to moderate | Weekly brushing, occasional bath |
| Medium-length, slightly wavy | Mixed inheritance (most common F1 outcome) | Low | Brushing 2–3 times/week, professional groom every 6–8 weeks |
| Long, flowing, double coat | Shih Tzu | Very low shedding, but high mat risk | Daily brushing, professional groom every 4–6 weeks |
The most common outcome in F1 litters is a medium-length, slightly wiry or wavy coat that's easier to manage than a full Shih Tzu coat but requires more attention than a Frenchie's. Expect to brush your dog at least two to three times per week and budget for professional grooming every six to eight weeks, which typically costs $50–$85 per session depending on your area and coat length.
Facial folds are a grooming priority regardless of coat type. Both parent breeds are brachycephalic, and most Frenchie Shih Tzu mixes inherit some degree of facial wrinkling. Clean these folds with a damp cloth or veterinary-recommended wipe at least twice a week to prevent yeast and bacterial infections. Products like Squishface Wrinkle Wipes or plain unscented chlorhexidine wipes work well.
Temperament: What to Expect (and What Might Surprise You)
The Frenchie Shih Tzu mix temperament lands somewhere on a spectrum between two companion breeds, which is generally good news — neither parent was bred for guarding, herding, or high-drive work. But "companion" doesn't mean "easy," and there's real variation here.
- Outgoing, affectionate, and eager to be near you
- Playful in short bursts, content to nap for hours
- Good with children (supervised, gentle kids aged 6+)
- Gets along with other dogs after proper socialization
- Alert enough to bark at the door, not yappy
- Adaptable to apartments, condos, or houses
- Stubbornness from both breeds — housebreaking can take 4–6 months
- Separation anxiety (both breeds are velcro dogs)
- Resource guarding tendency, especially in Shih Tzu–leaning individuals
- Snoring, snorting, and reverse sneezing (brachycephalic traits)
- Potential leash reactivity if not socialized before 16 weeks
- Heat intolerance — cannot handle vigorous exercise in warm weather
One trait that surprises many first-time owners: the stubbornness. French Bulldogs rank low in working obedience intelligence (they're not unintelligent — they're simply unmotivated by commands), and Shih Tzus share a similar independent streak. Training a Frenchie Shih Tzu mix requires patience, high-value treats (think freeze-dried liver or small cheese pieces), and short sessions of 5–10 minutes. Use positive reinforcement exclusively — force-free methods like clicker training and reward-based shaping work far better than any correction-based approach with these sensitive, willful dogs.
Early socialization is non-negotiable. Enroll in a puppy kindergarten class by 10–12 weeks of age (after initial vaccinations) and aim for positive exposure to at least 30 different people, surfaces, sounds, and environments before 16 weeks. The American Veterinary Society of Animal Behavior recommends socialization begin before full vaccination series completion, with appropriate precautions.
Health Considerations: The Hybrid Vigor Reality Check
Let's address a persistent myth: hybrid vigor does not eliminate health problems in designer mixes. The concept of heterosis (hybrid vigor) is real in animal breeding, but it primarily applies to traits controlled by many genes — like overall fertility and growth rate. It does not magically protect a Frenchie Shih Tzu mix from inheriting brachycephalic obstructive airway syndrome from both flat-faced parents.
In fact, this particular cross carries elevated risk for several conditions because both parent breeds share overlapping health vulnerabilities:
| Condition | Inherited From | Prevalence | Typical Treatment Cost |
|---|---|---|---|
| Brachycephalic Obstructive Airway Syndrome (BOAS) | Both breeds | High — majority will have some degree | $1,500–$5,000 for corrective surgery if severe |
| Intervertebral Disc Disease (IVDD) | Primarily Frenchie | Moderate — chondrodystrophic breed risk | $3,000–$8,000 for surgical intervention |
| Patellar Luxation | Both breeds (small dog common) | Moderate | $1,500–$3,500 per knee |
| Eye Conditions (cherry eye, corneal ulcers, dry eye) | Both breeds | Moderate to high | $300–$1,500 depending on condition |
| Allergies (environmental and food) | Primarily Frenchie | Moderate | $200–$600/year for ongoing management |
| Dental Disease | Both breeds (crowded teeth in small jaws) | High — often by age 3–4 | $500–$1,200 per professional cleaning |
BOAS deserves special attention. Because both parent breeds are brachycephalic, a Frenchie Shih Tzu mix is almost certain to have a shortened muzzle with some degree of airway compromise. Watch for: noisy breathing at rest, exercise intolerance, gagging or regurgitation after eating, and difficulty sleeping without elevated positioning. If your dog's breathing sounds like snoring even when awake, consult your veterinarian — early intervention (weight management, anti-inflammatory medication, or surgical widening of nostrils/soft palate) significantly improves quality of life.
Responsible breeders should provide health clearances for both parents. For the Frenchie parent, look for OFA (Orthopedic Foundation for Animals) evaluations for hips, patellas, and spine, plus a cardiac exam. For the Shih Tzu parent, look for OFA eye and kidney evaluations. A breeder who cannot produce these clearances is a red flag.
Exercise, Nutrition, and Daily Care
Despite their compact size, Frenchie Shih Tzu mixes need structured daily activity — just not intense activity. Plan for:
- Two short walks per day: 15–20 minutes each, preferably during cooler hours (early morning and evening)
- Indoor play sessions: 10–15 minutes of tug, fetch down a hallway, or puzzle toys
- Mental enrichment: Snuffle mats, frozen Kongs (filled with plain yogurt and peanut butter — xylitol-free only), and scent games
- Total daily exercise target: 30–45 minutes of combined activity
Heat safety is critical. Any dog inheriting brachycephalic features should never exercise in temperatures above 80°F (27°C), and even 75°F (24°C) can be risky with humidity. Always carry water, watch for excessive panting or a blue-tinged tongue, and cool your dog immediately with lukewarm (not ice-cold) water on the belly and paw pads if overheating occurs.
For nutrition, feed a high-quality AAFCO-approved small-breed formula. French Bulldogs are prone to food allergies and sensitive stomachs, so a limited-ingredient diet with a single named protein (like salmon, lamb, or duck) may be beneficial if digestive issues arise. Target portions based on your dog's ideal weight — for a 15 lb (6.8 kg) Frenchie Shih Tzu mix, that's approximately ¾ to 1 cup of dry kibble per day, split into two meals. Monitor body condition score (BCS) monthly; you should be able to feel ribs without pressing hard, and see a visible waist from above.
Cost and Finding Your Dog: Breeders vs. Rescue
The Frenchie Shih Tzu mix occupies an unusual position in the designer dog market. It's not as mainstream as a Labradoodle or Cavapoo, which means fewer dedicated breeders — but also somewhat lower prices than the most hyped crosses.
| Source | Price Range | What's Typically Included |
|---|---|---|
| Reputable small-scale breeder | $1,200–$2,800 | Health-tested parents, first vaccinations, deworming, microchip, health guarantee, take-back clause |
| Backyard breeder / online listing | $500–$1,200 | Often no health testing, minimal vet care, no guarantee — high risk |
| Breed-specific rescue (Frenchie or Shih Tzu rescue) | $300–$600 adoption fee | Spay/neuter, vaccinations, behavioral assessment, foster history |
| General shelter | $50–$300 | Basic vet care, spay/neuter — mixes often misidentified |
First-year budget estimate: Beyond the purchase or adoption price, plan for $1,800–$3,500 in first-year expenses including spay/neuter ($300–$700), initial vet visits and vaccinations ($200–$400), pet insurance ($35–$65/month), quality food ($30–$50/month), grooming ($50–$85 per session, 4–8 times/year), supplies (crate, harness, bowls, bed: $200–$400), and puppy training classes ($150–$300).
For rescue options, check ASPCA's adoption portal, Petfinder, and breed-specific rescues like French Bulldog Rescue Network and the American Shih Tzu Club's rescue referral. Mixed breeds are sometimes listed under one parent breed, so search both "French Bulldog mix" and "Shih Tzu mix" in your area.
Who Is the Frenchie Shih Tzu Mix Best Suited For?
After reviewing everything above, here's an honest assessment of the ideal owner profile for this mix:
| Factor | Good Fit | Poor Fit |
|---|---|---|
| Living Space | Apartments, condos, small homes with or without yards | Large rural properties where long hikes are expected |
| Activity Level | Sedentary to lightly active owners, retirees, work-from-home professionals | Marathon runners, hikers, anyone wanting an athletic companion |
| Experience | First-time owners willing to invest in training, experienced owners who understand brachycephalic care | Owners who want an "easy" dog that trains itself |
| Family | Families with older children (8+), singles, couples, seniors | Families with toddlers (small dog injury risk), households with very large, boisterous dogs |
| Time Commitment | People home most of the day (prevents separation anxiety) | 12+ hour workdays without dog care arrangements |
| Climate | Temperate or cool climates, air-conditioned homes | Hot, humid regions without reliable AC (heat stroke risk) |
| Budget | Can afford pet insurance, potential BOAS surgery, regular grooming | Tight budget with no emergency veterinary fund |
Frequently Asked Questions
What two breeds make up the Frenchie Shih Tzu mix?
The Frenchie Shih Tzu mix is a cross between a purebred French Bulldog and a purebred Shih Tzu. It's a first-generation (F1) designer hybrid in most cases, though some breeders produce F1B backcrosses.
How big will my Frenchie Shih Tzu mix get?
Most adults weigh between 12–20 lb (5.4–9 kg) and stand 9–13 inches (23–33 cm) at the shoulder. Size depends on which parent breed's genes are more dominant, and can vary even within the same litter.
Is the Frenchie Shih Tzu mix hypoallergenic?
No dog is truly hypoallergenic, and this mix is not guaranteed to be low-shedding. Puppies inheriting the Shih Tzu coat will shed minimally but require heavy grooming. Those inheriting the Frenchie coat will shed moderately but need less maintenance. You won't know for certain until the puppy's adult coat develops around 6–9 months.
What health issues might this mix inherit?
The most significant concern is BOAS (brachycephalic obstructive airway syndrome), since both parents are flat-faced. Other inherited risks include IVDD, patellar luxation, eye conditions (cherry eye, corneal ulcers), allergies, and early-onset dental disease. Pet insurance is strongly recommended — comprehensive plans from providers like Trupanion or Healthy Paws typically run $40–$65/month for this mix.
How much does a Frenchie Shih Tzu mix cost?
From a reputable breeder, expect to pay $1,200–$2,800 for a puppy. Adoption from a rescue typically costs $300–$600. First-year total costs including supplies, vet care, food, and grooming typically reach $1,800–$3,500 beyond the purchase price.
Are Frenchie Shih Tzu mixes good with children?
They can be excellent with respectful, gentle children aged 6 and older. Because of their small size and potential spinal vulnerability (IVDD risk from the Frenchie side), young children must be taught not to pick up, squeeze, or drop the dog. Always supervise interactions between any dog and children under 10.
How long do Frenchie Shih Tzu mixes live?
Expect a lifespan of 10–15 years, with Shih Tzu–leaning individuals often living longer (Shih Tzus regularly reach 14–18 years). Maintaining a healthy weight, keeping up with dental cleanings, and managing any breathing issues early are the three biggest factors in maximizing longevity.
Anouk Beaumont
All our authors care for dogs every day — read more of their work on the authors page.
