Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Long Do Shih Tzus Live? Average Lifespan, Data & Care Guide

Black and White Shih Tzu

The Shih Tzu is a popular companion dog breed. It is small, so can adapt easily to life in an apartment. It was bred originally as a companion dog, so it doesn’t have any predatory instinct and is loyal and loving. They are also happy, active, and sociable dogs that, although need a daily walk, don’t require too much exercise.

Possibly another reason for their popularity is their predicted lifespan, as Shih Tzus are one of the longest-living breeds, with a lifespan between 12 and 16 years. This breed commonly lives to 13 years and they can live a lot longer, giving the owner a lifetime of companionship.

How long your Shih Tzu will live is determined by a lot of factors, including nutrition and general care, as well as genetics and living environment.

divider dog paws oct 2024

What’s the Average Lifespan of a Shih Tzu?

The Shih Tzu is said to live between 12 and 16 years, although this is only a rough guide. Some may not live as long as 12 years, and some may live longer. Smokey, a Shih Tzu from Florida, was known to have lived 23 years, and there may be some that have lived longer but have never been documented or recorded.

The average lifespan is just over 13 years, and this figure is higher if you exclude death by traumatic incident.

dog breeds shih tzu
Image by: Liliya Kulianionak

divider dog paws oct 2024

Why Do Some Shih Tzus Live Longer Than Others?

While it is true that some Shih Tzus live as long as 16 years or more, others may only live 10 to 12 years. A variety of factors contribute to determining how long a dog of any breed will live, and while owners do have some control over some elements, some of it comes down to genetics and even a degree of luck.

Nutrition

Dogs are omnivores, which means that they naturally eat a combination of meat and plant ingredients, like people. Furthermore, the food we give to our dogs needs to meet their nutritional requirements for everything from protein and carbohydrates to different vitamins and minerals.

When buying dog food, owners are advised to make sure it meets American Association of Feed Control Officials (AAFCO) standards as a complete and balanced meal for dogs.

You can also find foods that are specially formulated for small dogs, as well as some that are geared towards Shih Tzus specifically. As well as feeding the right food, it is important to feed the right amounts, according primarily to your vet or, if your dog is healthy and has no dietary plan set out by a veterinarian, according to manufacturer recommendations.

Daily food allowances should also be split over two meals a day, spaced as evenly apart as possible.

Environment and Conditions

Environment and living conditions can play a big part in how long a dog lives. A dog that has plenty of space in an environment that is free from toxins and potential hazards will naturally live a longer life. While you might not be able to choose where you live according to whether it is best for your dog, you can ensure that the internal and external property conditions are as safe as possible.

Keep medicines, cleaning products, and other toxins in closed cupboards out of the way, and check that there are no plants in the garden that might cause harm.

soldier cuddling his shih tzu dog
Image by: Drazen Zigic, Shutterstock

Size

Shih Tzus are small dogs and smaller breeds do tend to live longer than large dog breeds. Size can also take into account the size of your dog compared to that of the breed as a whole. Shih Tzus should weigh between 9 and 16 pounds, according to whether they are small or large for the breed standards.

Overweight and underweight dogs are less likely to reach their full lifespan potential, which is another good reason to ensure that you feed an appropriate diet.

Sex

Assuming they have been desexed, male and female Shih Tzus live approximately the same length of time. However, some reports suggest that females may actually live a little longer—even as long as 18 months longer than their male counterparts.

close up of a white shih tzu dog
Image by: Julia Barrantes, Shutterstock

Genes

Like any breed, Shih Tzus are more prone to certain conditions than the average dog. They are more likely to suffer arthritis and intervertebral disc disease, which can cause mobility problems. They are also prone to chronic bronchitis and because they are a brachycephalic breed, they can also suffer Brachycephalic Obstructive Airway Syndrome (BOAS).

Both of these conditions can cause breathing difficulties that may shorten the life of the dog.

There is nothing you can do to beat genetics but do ensure that the breeder had the puppy’s parents screened for common problems and seek veterinary assistance if you believe your Shih Tzu shows symptoms of any of these conditions. Early identification and treatment increase the likelihood of successful treatment.

Remember to have regular vet visits when owning a Shih Tzu to keep their health and well-being. If you’re concerned about your dog’s health we suggest you speak to a vet.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


divider dog paws oct 2024

The 4 Life Stages of a Shih Tzu

1. Puppy

Black and white shih tzu puppy playing on the green grass
Image by: Druzhnieva Veronika, Shutterstock

The puppy stage of a Shih Tzu’s life is when it will develop socially, physically, and mentally. The true puppy stage will last for approximately 6 months, although most puppies leave their mother at around 3 months of age, and continue their development with a new owner.


2. Adolescent Dog

By the time the Shih Tzu reaches 6 months of age, it is reaching the adolescent dog stage. Females will likely have their first heat at around this time and males will also become sexually active. Adolescent dogs should know their place in the hierarchy of the family, and physical growth starts to slow by this stage.


3. Adult Dog

shih tzu puppy sitting on sofa
Image by; Pattarit S, Shutterstock

By 9 months, physical growth will have virtually stopped, and the dog is considered an adult when it reaches around 12 months of age. It grows a little more until it reaches 15 months of age, but this isn’t always the case.


4. Senior

The senior stage is a little more difficult to pinpoint and is said to occur when an adult dog slows down and enters its twilight years. For smaller breeds like the Shih Tzu, most consider senior age to occur at 10 years, although some owners say senior age starts at 7.

divider dog paws oct 2024

How to Tell Your Shih Tzu’s Age

Obviously, if you got your Shih Tzu from a breeder or when it was a puppy, you should have a good idea of its age. But, if you have adopted one, it can be more difficult to tell. Up until adulthood, you can check their teeth. Shih Tzus get their adult teeth at about 6 months.

Beyond this, you will have to make the best judgment based on health, mobility, and looks. A veterinarian will generally look at dental health and other factors to give a clearer picture of the dog’s age.

Click to Enlarge

divider dog paws oct 2024

Conclusion

The Shih Tzu is a very popular breed of small, companion dog. It is lively, friendly, and loyal. It can live in an apartment and is generally well-behaved, although it will expect treats and attention all the time. Another reason for the popularity of the breed is its 12 to 16-year lifespan, although exactly how long one will live is determined by much more than just breed.

Factors like nutrition, general healthcare level, and even the environment in which the dog lives will have a big impact on how many years a dog lives. Some Shih Tzus have been known to live 20 years or longer.

See also: 


Featured Image Credit: NcikName, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Petaluma Dog Food Review 2025: Our Expert’s Opinion

Petaluma is changing the pet food industry by producing 100% vegan dog food that also contains high-quality ingredients. This Oakland-based company is mission-driven...

Bearded Collie Dog Breed: Info, Pictures, Facts & Traits

The lovable Bearded Collie is a medium-sized dog that is smart, independent, and sometimes stubborn. With an athletic build and a lively personality,...

How to Get Dog Pee Smell & Stains Out of a Couch: 4 Effective Steps

Dogs are humans’ best friends. They are interactive, loving, loyal, and protective. However, they can also be gross! Living with a dog almost...

Will Coyotes Attack Dogs? 8 Vet-Approved Ways to Protect Your Pup

When you think of coyotes, you might imagine them out in the wild, but the truth is that as coyotes’ natural habitats shrink,...

More related

Can Dogs Sense When Someone Is About to Die? Vet-Verified Facts & FAQ

Dogs have always been humans’ best friends. They’re loyal and loving, and their keen senses of smell make them great partners for all...

How To Calm Your Dog During a Thunderstorm: 8 Effective Tips

As humans, we usually marvel at the sounds and sights of a thunderstorm, but for many of our canine companions, it is quite...

Bloodhound Basset Mixed Dog Breed: Info, Pictures, Care & More

Although several hybrid dogs are produced with Poodles, Hounds are becoming more common in mixed-breed pairings. If floppy ears, musical baying, and a...

Can Dogs with Pancreatitis Eat Tuna? Our Vet Explains

Pancreatitis can be a severe, painful, debilitating disease in humans and dogs alike. Because this organ plays so many important functions within the...

Keep reading

8 Best Dog Foods for Pitbull Puppies to Gain Weight in 2025 – Reviews & Top Picks

What we lovingly call a Pitbull is officially known as the American Staffordshire Terrier. Pitbulls are strong and athletic, with a muscular build that is easily recognizable. Contrary to their buff exterior, most Pitbulls are playful and just a little...

pitbull eating

Can Dogs Eat Rutabagas? Vet-Reviewed Facts & FAQ

As a pet parent, you want to ensure your dog is healthy and happy. It’s well known that dogs can eat a variety of vegetables like carrots, spinach, peas, and even fruits like apples and blueberries. And you’ll even find...

Can Dogs Eat_Rutabagas

5 Ollie Dog Food Alternatives in 2025: Comparison & Reviews

When it comes to your dog’s health, Ollie pet food is one fresh-food brand that is becoming increasingly popular. This brand is on a mission to feed dogs with only the best and freshest ingredients available. Unfortunately, as they grow...

dog eating wet food

Can Dogs Eat Peanut Butter Crackers? Vet-Approved Facts

Dogs love food and they don’t seem to be too discerning when it comes to what they chow down on. Most owners have wondered at some point if their dog has eaten something that they shouldn’t have. So what is...

Can Dogs Eat Peanut Butter Crackers

Bil-Jac Dog Food Review 2025: Recalls, Pros & Cons

Review Summary Bil-Jac makes several varieties of wet and dry dog food, treats, and supplements. The company promotes its food as super premium dog food that provides the best taste and nutrition. Its main selling point is the use of...

Dogster_Bil-Jac Dog Food Review

Lotus Dog Food Review 2025: Recalls, Pros & Cons

Review Summary In the pet food world, you will find a seemingly endless supply of different brands and types of kibbles. In fact, in recent years, the pet food market has seen double-digit growth every single year. This rise in...

Dogster_Lotus Dog Food Review

Can Dogs Eat Hot Sauce? Vet-Verified Health Facts

Some people like their food to be extra spicy, with hot sauces being a $1.65 billion market in the United States. Of course, not everyone likes the heat. That includes your dog. Wild or domestic canines don’t encounter this taste...

Can Dogs Eat Hot Sauce

Where Is Taste of the Wild Dog Food Made? Manufacturing Locations

With growing concerns surrounding the safety of pet food and some countries lacking laws that apply to the regulation of pet food manufacturing, a lot of United States-based pet owners are on the hunt for foods that are manufactured right...

brown dog eating its food