English Bulldog Shih Tzu Mix: The Complete Breed Guide
Everything you need to know about the English Bulldog Shih Tzu mix — size, temperament, health risks, grooming, and cost for this designer breed.
The English Bulldog Shih Tzu mix — sometimes called a "Bull Tzu" — is a designer cross between two beloved companion breeds with wildly different builds but surprisingly compatible personalities. One parent is a stocky, wrinkled powerhouse; the other is a silky-coated lap dog bred for Chinese royalty. The result is a compact, affectionate companion that falls somewhere in between — though exactly where is anyone's guess until the puppy matures.
If you're researching this mix, you've likely noticed that information is scattered and contradictory. This guide cuts through the noise with specific data on size ranges, inherited health risks from both parent breeds, realistic cost expectations, and the lifestyle this cross actually suits. No sugarcoating the brachycephalic (flat-faced) realities both parents bring to the table.
Parent Breed Breakdown: English Bulldog Meets Shih Tzu
Understanding any designer mix starts with understanding its foundation breeds. The English Bulldog and Shih Tzu couldn't look more different, but they share a common thread: centuries of selective breeding purely for companionship. Neither breed was developed for working tasks like herding or hunting, which shapes the Bull Tzu's temperament in predictable ways.
| Trait | English Bulldog | Shih Tzu |
|---|---|---|
| AKC Group | Non-Sporting | Toy |
| Weight Range | 40–50 lb (18–23 kg) | 9–16 lb (4–7 kg) |
| Height at Shoulder | 14–15 in (36–38 cm) | 9–10.5 in (23–27 cm) |
| Lifespan | 8–10 years | 10–18 years |
| Coat Type | Short, smooth, fine | Long, flowing, double coat |
| Shedding Level | Moderate (seasonal) | Low (hair, not fur) |
| Skull Shape | Brachycephalic | Brachycephalic |
| Exercise Needs | 20–30 min/day (low intensity) | 30–45 min/day (moderate) |
| Barking Tendency | Low | Moderate to High |
| Origin | England (bull-baiting → companion) | China/Tibet (royal companion) |
The critical overlap here is brachycephalic obstructive airway syndrome (BOAS) — both parent breeds have shortened skulls that compress nasal passages, elongate the soft palate, and narrow the trachea. According to the American Kennel Club, brachycephalic dogs are predisposed to breathing difficulties that worsen in heat, during exercise, and with obesity. Any puppy from this cross will inherit some degree of flat-faced anatomy, and this single fact shapes nearly every aspect of care.
Size Range: How Big Will an English Bulldog Shih Tzu Mix Get?
This is where the size gap between parents creates genuine unpredictability. The English Bulldog is roughly 3 to 5 times heavier than the Shih Tzu, which means F1 (first-generation) puppies can land anywhere across a wide spectrum.
| Generation | Weight Range | Height Range | Build Tendency |
|---|---|---|---|
| F1 (Bulldog × Shih Tzu) | 18–40 lb (8–18 kg) | 10–14 in (25–36 cm) | Unpredictable — wide variation |
| F1B (Bull Tzu × Shih Tzu backcross) | 14–28 lb (6–13 kg) | 9–12 in (23–30 cm) | Smaller, leaner build |
| F1B (Bull Tzu × Bulldog backcross) | 30–48 lb (14–22 kg) | 12–15 in (30–38 cm) | Stockier, broader chest |
| F2 / Multigen | 20–35 lb (9–16 kg) | 10–13 in (25–33 cm) | More stabilized mid-range |
Most Bull Tzus land in the 20–30 lb (9–14 kg) range at maturity — solidly small-to-medium. However, an F1 puppy that takes heavily after the Bulldog parent could push 40 lb, while one favoring the Shih Tzu might top out at 18 lb. If size matters for your living situation (apartment weight limits, travel carriers, small children), ask the breeder which parent is which size and request weight projections based on the specific litter's growth curve at 8 and 12 weeks.
Coat, Color, and Grooming: What to Expect
The coat is one of the most variable traits in this cross, and it directly impacts your daily grooming commitment.
Coat Type Possibilities
- Bulldog-dominant coat: Short, smooth, single-layered. Low-maintenance — weekly brushing with a rubber curry brush (like the Kong ZoomGroom) and occasional baths. Moderate seasonal shedding.
- Shih Tzu-dominant coat: Medium to long, silky, double-layered. Requires brushing every 1–2 days to prevent matting, professional grooming every 6–8 weeks ($50–$90 per session depending on your area). Minimal shedding but high maintenance.
- Blended coat (most common in F1): Medium-length, slightly wavy or wiry texture. Brushing 3–4 times per week, professional grooming every 8–10 weeks. Moderate shedding.
Color Range
Bull Tzus inherit color genetics from both parents, producing a wide palette: brindle, fawn, white, black, gold, liver, red, or any combination including parti-color (white with patches) and tricolor. The Bulldog's brindle gene is dominant, so brindle or brindle-and-white puppies are common in F1 litters.
Is This Mix Hypoallergenic or Low-Shedding?
No dog is truly hypoallergenic. The Shih Tzu parent carries a hair-type coat that sheds minimally and produces less dander than fur-type coats, which some allergy sufferers tolerate better. However, the English Bulldog sheds moderately and produces significant dander. An F1 Bull Tzu is unlikely to be low-shedding. An F1B backcrossed to a Shih Tzu has a better chance of inheriting the hair-type coat, but there are no guarantees. If allergies are a concern, spend time with the specific puppy before committing and consult an allergist — not just the breeder.
Facial Wrinkle Care
If your Bull Tzu inherits the Bulldog's facial folds, wrinkle maintenance is non-negotiable. Moisture and debris trapped in skin folds cause intertrigo (fold pyoderma) — a bacterial or yeast infection that smells foul and causes painful inflammation. Clean facial folds daily with a soft cloth or veterinary-recommended wipe (Vet Basics ChlorConazole wipes run about $12–$18 for a 50-count box), then dry thoroughly. Budget for this as a daily 2-minute routine.
Temperament: Personality Range and Behavioral Realities
Both parent breeds were developed as companions, which gives the Bull Tzu a strong baseline for affection and human-orientation. But temperament in mixed breeds spans a range, not a single point.
Best-Case Scenario
A Bull Tzu that blends the Bulldog's easygoing, low-drama nature with the Shih Tzu's playful sociability tends to be an exceptionally adaptable companion: good with children who understand gentle handling, friendly with other dogs when properly socialized, content with moderate exercise, and eager to cuddle. These dogs thrive in apartments and homes alike, don't require a yard, and bond deeply with their people.
Challenging Scenario
A Bull Tzu that inherits the Shih Tzu's alert-barking tendency combined with the Bulldog's stubborn streak can be a frustrating training partner. Some individuals are vocal at doorbells, passersby, and other dogs — not from aggression but from watchfulness. The Bulldog's independent thinking means recall and leash training require patience and high-value treats. Housebreaking can take 4–6 months in some individuals, as both parent breeds can be slow to potty train. Crate training with a consistent schedule (out every 2 hours for puppies, immediately after meals and naps) is the most reliable approach.
With Children and Other Pets
Bull Tzus generally do well with children ages 6 and up who've been taught to respect a dog's space. Their small-to-medium size means toddlers could accidentally injure them during rough play, so supervision is essential. With other dogs, early socialization (exposure to 50+ different dogs, people, surfaces, and environments before 16 weeks) sets the foundation. The Shih Tzu parent's tendency toward same-sex dog aggression is documented in breed literature and can surface in the mix — spaying/neutering reduces but doesn't eliminate this risk.
Use only positive reinforcement and force-free training methods. Both breeds respond poorly to harsh corrections — Bulldogs shut down, and Shih Tzus become fearful. Reward-based training with treats, play, and praise produces reliable results without damaging trust.
Health Considerations: Inherited Risks From Both Parents
Let's address the hybrid vigor myth directly: crossbreeding does not eliminate inherited health conditions. Hybrid vigor (heterosis) can reduce the risk of recessive genetic diseases that require two copies of a faulty gene — but it offers no protection against structural problems both parents share. Since both the English Bulldog and Shih Tzu are brachycephalic, carry orthopedic predispositions, and have documented eye conditions, the Bull Tzu inherits a real risk profile that responsible owners must plan for.
| Condition | Inherited From | Prevalence | Typical Treatment Cost |
|---|---|---|---|
| Brachycephalic Obstructive Airway Syndrome (BOAS) | Both parents | Very high — nearly all individuals affected to some degree | $1,500–$5,000+ for surgical correction (stenotic nares, elongated soft palate) |
| Hip Dysplasia | Primarily Bulldog | Bulldogs: ~30% affected (OFA data) | $1,500–$7,000 per hip for total replacement; $800–$2,000 for conservative management |
| Patellar Luxation (Kneecap Dislocation) | Primarily Shih Tzu | Shih Tzus: moderate prevalence | $1,000–$3,500 per knee for surgical repair |
| Keratoconjunctivitis Sicca (Dry Eye) | Both parents | Moderate in both breeds | $50–$150/month for lifelong eye drops (cyclosporine or tacrolimus) |
| Intervertebral Disc Disease (IVDD) | Both (long-backed, short-legged conformation) | Low to moderate | $3,000–$8,000 for surgical decompression; $500–$2,000 conservative |
| Allergic Dermatitis (Skin Allergies) | Primarily Bulldog | Bulldogs: very high prevalence (estimated 30–50%) | $200–$800/year for Apoquel, Cytopoint, or immunotherapy |
| Dental Disease | Both (crowded teeth from shortened jaw) | Very high — most affected by age 3–4 | $300–$800 per professional cleaning; $200–$600 per extraction |
BOAS: The Defining Health Concern
Because both parent breeds are brachycephalic, every Bull Tzu puppy will have a shortened skull to some degree. BOAS symptoms include noisy breathing (snoring, snorting, gagging), exercise intolerance, heat sensitivity, and in severe cases, collapse during exertion. The American Veterinary Medical Association notes that BOAS is a welfare concern that worsens with age and obesity.
Practical management: Keep your Bull Tzu at a lean body condition score (BCS 4–5 out of 9), avoid exercise during temperatures above 80°F (27°C), use a harness instead of a collar to avoid tracheal pressure, and learn to recognize respiratory distress signs (blue-tinged gums, open-mouth breathing at rest, inability to settle). If your dog's breathing sounds like "a freight train" during sleep, consult your veterinarian — surgical correction of stenotic nares (narrowed nostrils) and elongated soft palate can dramatically improve quality of life.
Preventive Health Checklist
- Annual vet exams with weight monitoring and body condition scoring
- Dental cleanings under anesthesia starting at age 2–3 (annual or biannual depending on plaque buildup rate)
- Hip and patella evaluation — OFA or PennHIP screening if breeding is considered
- Eye exams by a veterinary ophthalmologist annually after age 3
- Skin fold cleaning daily if wrinkles are present
- Pet insurance — strongly recommended given the surgical cost potential; expect $40–$80/month for comprehensive coverage from providers like Trupanion, Healthy Paws, or Nationwide
Cost: What You'll Actually Spend
Purchase Price
The English Bulldog Shih Tzu mix is not among the most common designer breeds, which affects both availability and pricing.
- From a responsible breeder: $800–$2,500 depending on location, parent health testing, and generation. Breeders who perform OFA hip/patella certifications, cardiac exams, and ophthalmologist eye clearances on both parents typically charge at the higher end — and this testing is worth paying for.
- From a rescue or shelter: $100–$500 adoption fee. Designer mixes do end up in rescues, though Bull Tzus specifically are uncommon. Check breed-specific rescues for both English Bulldogs and Shih Tzus, as well as general shelter databases like Petfinder.
- From a backyard breeder or puppy mill: $300–$800 with no health testing, no take-back clause, and often falsified pedigree claims. The veterinary costs of an untested puppy routinely exceed the savings within the first two years.
First-Year Cost Estimate
| Category | Estimated Cost |
|---|---|
| Puppy purchase (breeder) | $800–$2,500 |
| Initial vet visits (3 puppy exams + vaccines) | $300–$600 |
| Spay/neuter | $300–$700 |
| Food (quality kibble or balanced fresh diet) | $300–$600/year |
| Grooming (if medium/long coat) | $300–$700/year |
| Pet insurance | $480–$960/year |
| Supplies (crate, bed, harness, bowls, toys) | $200–$400 |
| Training (group classes or private sessions) | $150–$500 |
| Total first year | $2,830–$6,960 |
Ongoing annual costs after the first year typically range from $1,500–$3,500, heavily dependent on whether chronic conditions like allergies or BOAS require ongoing management.
Who This Mix Suits Best (And Who Should Look Elsewhere)
The Bull Tzu is not a universal fit. Here's an honest assessment based on what both parent breeds demand.
Ideal Owner Profile
- Lifestyle: Mostly home-based or work-from-home; can avoid leaving the dog alone for more than 4–5 hours regularly
- Living space: Apartment, condo, or house — yard not required, but climate-controlled environment is essential
- Experience level: Some prior dog experience preferred; first-time owners should commit to puppy training classes
- Family composition: Families with children 6+, single adults, couples, retirees — anyone seeking a companion rather than a working or sport dog
- Budget: Comfortable spending $2,000–$4,000+ annually on care, with emergency savings or insurance for unexpected surgical needs
- Climate: Temperate or cool climates; hot/humid regions (southern US summers) require constant air conditioning and restricted outdoor time
Look at a Different Breed If...
- You want a jogging partner or hiking dog — BOAS risk makes sustained aerobic exercise dangerous
- You're away from home 8+ hours daily — both parent breeds are prone to separation distress
- You want a truly low-maintenance coat with zero grooming costs
- You live in a hot climate without reliable air conditioning
- You're seeking a dog for competitive obedience, agility, or fieldwork
- Your budget cannot accommodate potential BOAS surgery ($1,500–$5,000) or chronic allergy management
Frequently Asked Questions
What two breeds make up the English Bulldog Shih Tzu mix?
The Bull Tzu is a cross between a purebred English Bulldog and a purebred Shih Tzu. First-generation (F1) puppies have one parent of each breed. Some breeders produce F1B litters by breeding a Bull Tzu back to one of the parent breeds to emphasize specific traits like smaller size or a lower-shedding coat.
How long do English Bulldog Shih Tzu mixes live?
Expect a lifespan of 10–14 years in healthy individuals — longer than the Bulldog's typical 8–10 years but shorter than the Shih Tzu's 10–18 years. Lifespan is heavily influenced by weight management, BOAS severity, and proactive dental care. Dogs kept at ideal weight with regular veterinary care and managed airway issues can reach the upper end of this range.
Are Bull Tzus good with other dogs?
Generally yes, especially when socialized before 16 weeks of age. However, the Shih Tzu parent breed has a documented tendency toward same-sex aggression, particularly male-to-male. Neutering reduces this risk but doesn't eliminate it. Introduce new dogs on neutral territory and use positive reinforcement to build positive associations.
How much exercise does this mix need?
Plan for 25–40 minutes of daily activity, split into two or three short sessions. Two 15-minute leash walks plus indoor play sessions work well. Avoid exercise during peak heat (10 AM–4 PM in summer), and never push a Bull Tzu to the point of heavy panting or open-mouth breathing — these are signs of respiratory distress, not fitness improvement.
Do English Bulldog Shih Tzu mixes shed a lot?
It depends on which parent's coat they inherit. Bulldog-type coats shed moderately, especially during seasonal changes in spring and fall. Shih Tzu-type coats shed very little but require daily brushing and professional grooming. Most F1 Bull Tzus fall somewhere in between — expect moderate shedding with brushing needed 3–4 times per week.
Can I find this mix in a rescue?
Yes, though it's uncommon. Check Petfinder and Adopt-a-Pet with both "Bulldog" and "Shih Tzu" as breed filters. English Bulldog breed rescues (such as Bulldog Rescue Network) occasionally take in mixed-breed dogs. Be patient — you may need to wait several months or expand your search radius. Adoption fees typically range from $100–$500 and often include spay/neuter, vaccinations, and microchipping.
Dr. Hannah Wickes
All our authors care for dogs every day — read more of their work on the authors page.
