Maltese Mix Shih Tzu (Mal-Shi): Complete Breed Profile & Care Guide

If you've spent any time browsing small-breed adoption listings or designer dog breeder websites, you've likely encountered the Maltese mix Shih Tzu — commonly called the Mal-Shi, Malshi, or Shih-tese. This cross pairs two ancient toy breeds, each with centuries of lapdog history, into a compact companion that typically weighs under 15 pounds.

But unlike purebred dogs with predictable breed standards, designer mixes like the Mal-Shi come with inherent variability. One puppy in a litter might inherit the Maltese's silky single coat and alert demeanor, while a littermate could get the Shih Tzu's denser double coat and laid-back personality. Understanding this range is essential before you commit.

This guide breaks down what you can realistically expect from a Maltese Shih Tzu mix — including size ranges, coat possibilities, health screenings to request from breeders, and the real costs of ownership in 2026.

The Parent Breeds: Maltese and Shih Tzu Breakdown

Before evaluating any designer cross, you need to understand the two breeds contributing to the gene pool. Both the Maltese and Shih Tzu belong to the AKC Toy Group, but they differ in meaningful ways that affect what a Mal-Shi puppy might look and act like.

Parent Breed Comparison: Maltese vs. Shih Tzu

Trait	Maltese	Shih Tzu
Origin	Central Mediterranean (Malta); ancient breed dating to at least 500 BCE	China/Tibet; bred as imperial palace companions for centuries
Weight (AKC Standard)	Under 7 lb / 3.2 kg	9–16 lb / 4–7.3 kg
Height	7–9 in / 18–23 cm	9–10.5 in / 23–27 cm
Coat Type	Single coat, long, silky, no undercoat; white only	Double coat, dense, long, slightly wavy; all colors accepted
Shedding Level	Very low (hair-like coat)	Low to moderate (double coat sheds minimally but requires heavy grooming)
Muzzle Shape	Moderately short (mesocephalic leaning slightly brachycephalic)	Pronounced brachycephalic (very short muzzle, flat face)
Temperament Tendencies	Alert, affectionate, can be vocal, sometimes reserved with strangers	Outgoing, friendly, less prone to excessive barking, stubborn streak
Energy Level	Moderate; enjoys play but content with short walks	Low to moderate; true lapdog with brief exercise needs
Lifespan	12–15 years	10–18 years

The Maltese contributes alertness and a lower-shedding coat. The Shih Tzu contributes sturdier bone structure, a friendlier default disposition with strangers, and a wider color palette. Which traits a specific Mal-Shi puppy inherits is a genetic coin flip — and that's the reality of any first-generation cross.

Generations Explained: F1, F1B, and Multigen Mal-Shi

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

Because the parent breeds differ in size (the Maltese is notably smaller), Mal-Shi puppies can fall across a fairly wide range. Here's what you should expect based on generation and which parent was larger:

Mal-Shi Size Range Estimates

Measurement	Minimum (Maltese-leaning)	Maximum (Shih Tzu-leaning)
Adult Weight	6 lb / 2.7 kg	16 lb / 7.3 kg
Adult Height (at shoulder)	8 in / 20 cm	12 in / 30 cm
Typical "Average" Range	8–12 lb / 3.6–5.4 kg, 9–11 in / 23–28 cm tall

How to predict your puppy's size: If you're buying from a breeder, ask for the exact weights of both parents. An F1 puppy from a 5 lb Maltese dam and a 12 lb Shih Tzu sire will likely land around 8–10 lb as an adult. If the breeder can't tell you parent weights, treat any "estimated size" claim skeptically.

Weight management matters here. Even 2 extra pounds on a 10 lb dog represents a 20% increase — equivalent to a 150 lb person gaining 30 lb. According to the AVMA, obesity in small breeds accelerates joint problems and reduces lifespan. Keep your Mal-Shi at a body condition score (BCS) of 4–5 out of 9, where you can feel ribs without pressing hard but can't see them prominently.

Coat Types and the Hypoallergenic Question

This is where Mal-Shi variability becomes most visible — and where breeder claims about "hypoallergenic" puppies deserve scrutiny.

Coat Possibilities

An F1 Mal-Shi puppy can inherit any of these coat profiles:

• Maltese-dominant coat: Single-layered, long, silky, straight to slightly wavy. White or white with light lemon/tan markings. Lowest shedding. Requires daily brushing to prevent matting.
• Shih Tzu-dominant coat: Double-layered, denser undercoat, slightly coarser texture. Can appear in gold, black, white, liver, brindle, or combinations. Moderate shedding from the undercoat. Heavier grooming demands.
• Blended coat: A mix of both — single layer but with some wave or slight undercoat density. Moderate maintenance. This is the most common outcome in F1 litters.

Is the Mal-Shi Hypoallergenic?

No dog is truly hypoallergenic. The term is a marketing label, not a veterinary or scientific designation. Dog allergies in humans are triggered primarily by proteins in dander (skin flakes), saliva, and urine — not by hair itself.

That said, Mal-Shi dogs that inherit the Maltese single coat produce less dander-trapping undercoat and shed less, which means fewer allergens spread around your home. If allergies are a concern, an F1B Mal-Shi backcrossed to a Maltese gives you a higher probability of a lower-allergen coat — but no breeder can guarantee an allergy-safe puppy. Always spend time with the specific puppy before committing, and consider consulting an allergist.

Grooming Requirements

Regardless of which coat type your Mal-Shi inherits, plan for significant grooming:

• Brushing: Every 1–2 days with a slicker brush and metal comb. Mats form quickly behind the ears, under the legs, and around the collar area.
• Professional grooming: Every 4–6 weeks for a trim. Expect to pay $50–$85 per session depending on your area and coat length preference. A "puppy cut" (1–2 inch uniform length) reduces daily maintenance substantially.
• Bathing: Every 2–4 weeks with a gentle, dog-specific shampoo. Over-bathing strips natural oils and worsens skin dryness.
• Eye care: Both parent breeds are prone to tear staining. Wipe the eye area daily with a damp cloth or veterinary eye wipe. Trim hair around the eyes to prevent irritation.
• Ear cleaning: Weekly checks. Floppy ears trap moisture and debris, increasing infection risk. Use a veterinarian-approved ear cleaner — never insert cotton swabs into the ear canal.

Temperament: What to Expect (and What Might Surprise You)

Temperament in designer mixes is a spectrum, not a fixed trait. Here's the realistic range for a Maltese Shih Tzu mix:

Best-Case Temperament Profile

Your Mal-Shi inherits the Shih Tzu's easygoing friendliness combined with the Maltese's playful alertness. The result: an affectionate, adaptable companion who greets visitors warmly, settles calmly on your lap, enjoys short walks and indoor play sessions, and tolerates being alone for a few hours without destructive anxiety. This is the temperament most breeders aim for and many owners report — but it's not guaranteed.

Challenging Temperament Scenarios

Some Mal-Shi dogs inherit the Maltese's wariness of strangers, tendency to bark at sounds and visitors, and sensitivity to rough handling. Others pick up the Shih Tzu's stubborn streak, making recall training and housebreaking slower processes. A few may combine both: vocal and resistant to training.

These aren't "bad" dogs — they're dogs expressing inherited behavioral tendencies that need patient, positive-reinforcement training. Force-free methods work best: reward-based marker training (clicker or verbal "yes"), high-value treats for motivation, and short 5–10 minute sessions that don't overwhelm a small dog's attention span.

Socialization Is Non-Negotiable

The critical socialization window closes around 14–16 weeks of age. During this period, expose your Mal-Shi puppy to diverse people, surfaces, sounds, other vaccinated dogs, handling exercises (paw touching, ear inspection, mouth opening), and novel environments. Under-socialized small breeds are disproportionately prone to fear-based barking, leash reactivity, and defensive nipping — behaviors that are manageable in a 60 lb dog but still problematic in a 10 lb one.

Health Considerations: Inherited Risks from Both Parent Breeds

Let's address the hybrid vigor myth directly. The idea that mixed-breed dogs are automatically healthier than purebreds is an oversimplification. Crossbreeding can reduce the risk of recessive genetic diseases that are concentrated within a single breed's gene pool. But both parent breeds share several health vulnerabilities, and a Mal-Shi can inherit any of them.

A responsible breeder should provide health screening documentation for both parents. Here are the conditions to ask about:

Health Conditions to Screen For in Mal-Shi Parentage

Condition	Source Breed(s)	What It Is	Screening to Request
Patellar Luxation	Both (common in toy breeds)	Kneecap slips out of position; ranges from occasional skipping to chronic dislocation requiring surgery ($1,500–$3,500 per knee)	Orthopedic exam; OFA patella evaluation
Brachycephalic Obstructive Airway Syndrome (BOAS)	Shih Tzu (primary)	Shortened skull causes narrowed nostrils, elongated soft palate; leads to exercise intolerance, heat sensitivity, sleep disruption	Physical exam of nares and palate; ask breeder about parent breathing sounds
Progressive Retinal Atrophy (PRA)	Both	Degenerative eye disease leading to blindness; onset typically 3–7 years	OFA/CERF ophthalmologist exam; DNA test for prcd-PRA variant
White Shaker Syndrome	Maltese (primary)	Idiopathic (cause unknown) cerebellar tremors; typically onset 1–5 years; treatable with corticosteroids	No genetic test available; ask about family history
Dental Disease	Both (small mouth, crowded teeth)	Periodontal disease onset as early as 2–3 years; tooth loss, systemic infection risk	Not screenable in parents — plan for proactive dental care
Portosystemic Shunt (PSS)	Maltese (higher prevalence)	Abnormal blood vessel bypasses liver; causes stunted growth, seizures, neurological signs	Bile acids test (pre- and post-prandial) on puppies at 8–10 weeks
Intervertebral Disc Disease (IVDD)	Both (long-backed, short-legged build)	Disc herniation compresses spinal cord; can cause pain, weakness, paralysis	No predictive screening; avoid activities that stress the spine (jumping off furniture)

What to do with this information: Request that the breeder provide OFA (Orthopedic Foundation for Animals) or equivalent health clearances for both parents — specifically patella, cardiac, and ophthalmologist evaluations. If a breeder says "our vet checked them and they're healthy," that's not the same as formal screening. A wellness exam doesn't detect genetic markers or early-stage joint laxity.

For any health concerns in your Mal-Shi, always consult your veterinarian. Early detection through annual exams — including dental assessment, patellar checks, and eye exams — catches most of these conditions at manageable stages.

Who Should (and Shouldn't) Get a Maltese Shih Tzu Mix?

The Mal-Shi isn't universally suited to every household. Here's a practical fit assessment:

This Mix Suits You If:

• You live in an apartment, condo, or home without a large yard — these dogs exercise adequately with two 15–20 minute daily walks plus indoor play.
• You're home most of the day or work from home. Mal-Shi dogs bond closely and can develop separation anxiety if left alone 8+ hours regularly.
• You have older children (8+) who understand gentle handling. A 10 lb dog is fragile; toddlers and young children can accidentally injure one by dropping, squeezing, or stepping on them.
• You're a first-time dog owner looking for a manageable-size companion with moderate training needs.
• You're a senior or less active owner who wants a true companion lapdog rather than a hiking partner.
• You're prepared for grooming costs of $600–$1,000+ annually (professional grooming every 4–6 weeks plus at-home maintenance).

Consider a Different Breed If:

• You have toddlers or very young children who don't yet understand how to interact gently with small animals.
• You work long hours away from home and can't arrange midday companionship.
• You want a dog that can handle vigorous outdoor activities like trail running, long hikes, or cold-weather sports. The Mal-Shi's small size and potential brachycephalic airway limitations make them unsuitable for sustained intense exercise.
• You have zero tolerance for grooming demands or costs.
• You want guaranteed predictability in appearance, size, and temperament — adopt a purebred or an adult mixed-breed dog whose traits are already established.

Cost Breakdown: Purchasing and Owning a Mal-Shi

Here's a realistic financial picture for a Maltese Shih Tzu mix in 2026:

Mal-Shi Cost Breakdown

Expense	Low End	High End	Notes
Puppy from Responsible Breeder	$800	$2,500	Includes health clearances, early socialization, take-back clause. Avoid breeders under $600 — likely no health testing.
Adoption from Rescue	$150	$500	Small-breed rescues and general shelters. Adult Mal-Shi mixes appear regularly. Includes spay/neuter and initial vaccines.
First-Year Veterinary Costs	$500	$1,200	Includes DHPP series, rabies vaccine, spay/neuter (if not included), heartworm prevention, fecal exams, wellness visits.
Annual Grooming (Professional)	$400	$1,020	Based on $50–$85 per session, every 4–6 weeks. Urban areas trend higher.
Annual Food & Treats	$200	$400	High-quality small-breed kibble or wet food. A 10 lb dog eats roughly 1/3 to 1/2 cup daily.
Pet Insurance (Annual Premium)	$360	$720	$30–$60/month for accident + illness coverage on a small breed. Deductibles and reimbursement rates vary.
Supplies (First Year)	$200	$500	Crate, harness (not collar — trachea protection), grooming tools, bed, toys, dental chews.

First-year total estimate: $2,610–$6,340 depending on whether you adopt or buy from a breeder, your local grooming costs, and veterinary needs.

Breeder vs. rescue: Both are valid paths. Reputable Mal-Shi breeders perform parent health testing, raise puppies in-home with early neurological stimulation (ENS), and include contractual take-back clauses. Small-breed rescues like Shih Tzu Rescue or local all-breed rescues frequently have Maltese and Shih Tzu mixes available — often already spayed/neutered, microchipped, and temperament-evaluated. Either route, avoid pet stores, online brokers, and breeders who can't provide parent health documentation.

Training and Daily Care Essentials

Small dogs are sometimes dismissed as "easy" because their size makes them manageable even when poorly trained. But an untrained Mal-Shi who barks at every doorbell, resource-guards food, or nips at hands is just as stressful to live with as an untrained large dog — just quieter to the neighbors.

Housebreaking

Toy breeds are notoriously slower to housebreak, partly because their tiny bladders fill quickly and partly because owners sometimes skip consistent crate training with small puppies. Plan for:

• Crate training from day one (a crate sized for a 15 lb adult with a divider for a puppy)
• Potty breaks every 1–2 hours during the day for puppies under 4 months
• Consistent outdoor reward with high-value treats immediately after elimination
• Realistic timeline: 4–6 months for reliable housebreaking, with occasional accidents through the first year

Exercise Needs

Aim for 30–45 minutes of total daily activity, split between:

• Two leash walks of 15–20 minutes each
• Indoor play sessions (fetch, tug, puzzle toys)
• Mental stimulation: snuffle mats, frozen Kong toys, short training sessions

Use a well-fitted harness rather than a collar for walks. Both Maltese and Shih Tzu dogs are predisposed to tracheal collapse — a condition where the windpipe weakens and narrows — and collar pressure on the neck accelerates this risk.

Dental Care

Start tooth brushing early. Small breeds develop periodontal disease faster than large breeds due to tooth crowding in a small jaw. Brush daily with enzymatic dog toothpaste (never human toothpaste — fluoride and xylitol are toxic to dogs). Plan for professional dental cleanings under anesthesia starting around age 2–3, typically every 1–2 years thereafter. Budget $300–$700 per cleaning depending on your veterinary clinic and whether extractions are needed.

Frequently Asked Questions

What two breeds make up the Maltese mix Shih Tzu?

The Mal-Shi is a cross between a purebred Maltese and a purebred Shih Tzu. Both are AKC-recognized Toy Group breeds with ancient histories as companion dogs. The Maltese originated in the Mediterranean, while the Shih Tzu was developed in China and Tibet as a palace companion.

How big will a Maltese Shih Tzu mix get?

Adult Mal-Shi dogs typically weigh 6–16 lb (2.7–7.3 kg) and stand 8–12 inches (20–30 cm) at the shoulder. Most fall in the 8–12 lb range. The exact size depends on which parent breed's genes are more strongly expressed and the specific sizes of the individual parents.

What will the temperament be like?

Expect an affectionate, people-oriented companion dog. Most Mal-Shi dogs are friendly and adaptable, though some inherit the Maltese tendency toward alertness and vocalization, while others lean toward the Shih Tzu's more laid-back but sometimes stubborn nature. Early socialization and consistent positive-reinforcement training shape temperament as much as genetics.

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

No dog is truly hypoallergenic. However, Mal-Shi dogs that inherit the Maltese single coat shed very little and may produce fewer airborne allergens. Those inheriting the Shih Tzu double coat will shed slightly more. If allergies are a concern, spend time with the specific puppy before committing and consider an F1B backcross to a Maltese for higher probability of a lower-shedding coat.

What health issues might this mix inherit?

Key concerns include patellar luxation, brachycephalic airway issues (if the Shih Tzu's flat face is inherited), progressive retinal atrophy, dental disease, tracheal collapse, and portosystemic shunt (more common in the Maltese line). Request OFA health clearances for both parents and maintain regular veterinary checkups. Consult your veterinarian about breed-appropriate screening at annual exams.

How much does a Maltese Shih Tzu mix cost?

Expect to pay $800–$2,500 for a puppy from a responsible breeder who health-tests parent dogs. Adoption from a rescue typically costs $150–$500. First-year ownership costs (veterinary care, grooming, supplies, food) add $1,810–$3,840 on top of the purchase or adoption price.

Are Maltese Shih Tzu mixes good with children?

They do best with children aged 8 and older who understand gentle handling. Their small size makes them vulnerable to accidental injury from toddlers or rough play. Always supervise interactions between any dog and young children.

How long do Maltese Shih Tzu mixes live?

Most Mal-Shi dogs live 12–15 years, with some reaching 16–18 years with good genetics, proper nutrition, regular veterinary care, and healthy weight management. Both parent breeds are known for longevity.