The average Shih Poo lifespan is around 13 to 17 years. Leave this field empty if you're human: Social. Let’s take a look at 10 dogs with the longest lifespans and how long they can live! Toy poodles and Shih Tzus live on average for 10 to 18 years. Longevity in dogs is partially determined by their breed. A Shih Tzu’s lifespan typically ranges from 10 to 18 years, and with proper care and attention, they can even surpass that. The following are some of the major factors that influence a Shih Tzu’s lifespan:An average life expectancy of a Shih Tzu is around 13-14 years. This is because after two years, your Shih Tzu will have plenty of energy to burn off, and it will begin to calm down gradually. Given that we know how long Shih Tzus live for, we can calculate an average age for life expectancy. Friendly and adaptable shih tzus commonly live to 14 years or older. 12-17 Years. A dog's second year is equivalent to roughly nine years in a person's life. 5. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Height (Male): 8 to 14 inches. One size fits all – A general rule of thumb is that the first year of a dog's life is equivalent to 15 human years, the second year equivalent to 9 human years, and each subsequent year about 5 human years. After that every human year equals approximately five dog years. Longevity in dogs is partially determined by their breed. Regardless of some issues with. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Shih Tzu life expectancy typically ranges anywhere from 10 to 16 years. On average, a Shih Tzu can live up to 13 years, with some crossing that age and living up to 15 to 16 years of age. The average lifespan of the Shih Tzu is 13. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Shih Tzus are one of the best small family dogs and you may be wondering how long these lovable canine companions can live. On average, Shih Tzu dogs live for 12. This is longer than that of many other dog breeds and is mainly due to their size. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Shih Tzu Yorkie Mix Life Expectancy. But a recent study looked at which breeds are genetically closest to wolves, and while it's not surprising to find Huskies, Malamutes, and Samoyeds high on. How to use the dog years calculator? Select a breed, enter your dog’s age, click on the calculate, and the dog years to human years converter calculates the result. A Shih Tzu is considered a senior dog between 9 and 10 years of age. Lifespan. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Beagles are small to medium hound dogs weighing around 20 pounds. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Colors: Brown, white, gray, black. The age is reduced to 11. With the Shih Tzu, the average life span is 13 years, though this can range from 12 years to 16 years; for this reason, Shih Tzu dogs are considered to be seniors by the 10 year mark. 151 in ”human years”) is the oldest dog in the world. One Shih Tzu, named Smokey, enjoyed the Florida lifestyle for 23 years while. This includes large breed dogs such as German Shepherds, Golden Retrievers, Labrador Retrievers, Rottweilers, and Doberman Pinschers, as. The Zuchon has a similar life expectancy to that of its parent breeds, and you can expect to enjoy a good 10 to 16 years of furry companionship with your Shichon. The typical Toy Poodle lifespan is 10–18 years, and they’re a healthy breed overall. “Shih tzu are great family dogs. In the United States, canines on average live 12. Shih Tzus have a life span of ten to eighteen years. 3. Shih Tzus are tiny-sized dogs. Get Started. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Life span: 10–18 years, average is 12 years old: Kennel club standards; China Kennel Union: standard: Fédération Cynologique Internationale: standard:. The Shih Tzu's life expectancy can vary but on average they live 10 to 18 years. And with a life span of 13 to 15 years, you’ll have someone to keep you company for a long time. Have gorgeous coats. However, several factors may influence their longevity, including genetics, nutrition, exercise, medical care, and overall well-being. Below is a breakdown of the age of a Mal-Shi in dog years vs. Longevity in dogs is partially determined by their breed. the following human year, and so forth. The breed has an average life expectancy of 10-18 years, but this can vary greatly depending on the individual dog and its genetic makeup. The average lifespan of a Shih Tzu is 13 years, although some can live even longer. Surprisingly, they often outlast the larger and seemingly sturdier dog breeds. (Average human life expectancy in Japan is 83. Dog BreedLife Span. After that, each human year. However, most live between 10 and 16. Longevity in dogs is partially determined by their breed. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Smaller toy breeds like Shih Tzus tend to have longer lifespans. Healthy shih tzu dogs can live to be any age between 10 and 18, but have an average life span of 13 years. A Shih Tzu lives up to 13-17 years on the average. The following list can provide you with a quick glance at the average lifespan of some popular dog breeds: Australian cattle dog: 12-16 Years. 1 years. The world’s oldest Shih Tzu lived to be 23 years old — he was a Shih Tzu named Smokey from Florida. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Bernese Mountain dog: 7-10 Years. They are also known by various nicknames including “teddy bear dog” and “toy dog. Shih Tzu. Longevity in dogs is partially determined by their breed. It's thought the oldest living Shih Tzu was a dog from Florida called Smokey who lived to be 23-years-old. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. 23 years (11. Like other dog breeds, Shih Tzu dogs can have various illnesses. Yorkie Shih Tzus, also known as Shorkies, typically have a lifespan of 11 to 16 years. 8 years. The oldest recorded Shih Tzu lived to 23 years of age. A Shih Tzu's lifespan ranges from 10 - 16 years, with an average life span of 13 years. Life span: 12-15 years. The shih tzu has an above-average life span of around 14 to 16 years, according to the Continental Kennel Club, so with good health care, your shih tzu will be your buddy for some time. How old is a 10 year old Shih Tzu in human years? 56. This cross appears to result in a dog that is largely predictable. Some of them can even live for more than 20 years with proper healthcare and training. And by 10 months of age, they are considered to be an adult. The average lifespan of the Shiba Inu is 7. Therefore the Shih Tzu lifespan is up to 16 years. However,. Life expectancy varies by time in history, country and gender (male/female). On average, Shih Tzus have a lifespan of 10 to 16 years. The shih tzu, a teddy bear come-to-life, could be by your side for quite a long time. It’s important to be aware of potential health problems, so you can help. Their long coats need daily brushing or else require regular clipping. heart, and joints. If you own or want to call a little Shih Tzu your own, you are lucky, because the playful four-legged friend has a life expectancy of 10-16 years. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. In other words, each year of a Bichon’s life equals a different number of human years, depending on how old she is. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. He survived until he was 19 years, 4 months, and 10 days old. If a dog from the Shih Tzu dog breed doesn't have human interaction for. Small dogs mature early and females often have their first heat by the age of 6 or 7 months. ”. Generally, the smaller the dog the longer its life expectancy will be unless there are genetic diseases or issues inherited because of poor breeding. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. The oldest living Shih Tzu reached 20 years with proper care and genetics testing;. Longevity in dogs is partially determined by their breed. 1 years. It has an upbeat attitude and loves to play & romp. 4 years. Longevity in dogs is partially determined by their breed. That means you can expect the standard Shih Tzus to live on average for at least 12 to 13 years. Shih Tzu Life Span Compared to Other Breeds. Shih Tzus are one of the best small family dogs and you may be wondering how long these lovable canine companions can live. Regular vet care, including biannual exams, is important for monitoring the health of Shih Tzus and enabling early detection of potential issues. Feb 26, 2020 by Leo Roux. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. So before you bring one into your home, ensure this is a responsibility that you want to take on. 11 years in dog years means 65 human years for medium dog breeds. How old is a 13 year old Shih Tzu? The Age That a Shih Tzu Becomes a Senior With the Shih Tzu, the average life span is 13 years, though this can range from 12 years to 16 years; for this reason, Shih Tzu dogs are considered to be seniors by the 10 year mark. A Shih Tzu will live for about 13 years on average. The Shih Tzu’s life span is somewhere in the middle. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. There are many elements that affect how much time your dog will be about, which we’ll discuss in this article. The world’s oldest Shih Tzu, at 23 years old, is still healthy and. SHIH TZU LIFESPAN – POSSIBLE CAUSES OF DEATH. However, there are many different factors that can affect a Shih Tzu's life expectancy. Shih tzus are known for being affectionate and playful. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Instead of multiplication, we have to check the dog’s weight, breed, and health status. On average, Shih Tzus weigh 10. The shih tzu is a small, affectionate dog known for their feisty personalities. Just 12 to 14 inches tall, miniature Schnauzers are sturdy, muscular dogs that typically live 12 to 14 years. Below is a dog life expectancy chart sorted by the most popular registered breeds in the US. The Frenchie life span averages between 10 and 12 years. How Long Do Shih Tzu Live: Average Life Expectancy. 04 years; Beagle 9. Longevity in dogs is partially determined by their breed. However, the typical lifespan of a Shih Tzu ranges between 10 and 16 years. 47 years shorter than the life expectancy at. Shih Tzus are a breed with generally good health. The shih tzu lifespan ranges from 10-18 years. 2014;. Longevity in dogs is partially determined by their breed. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. However, there are several factors that can affect a Shih Tzu’s life expectancy. According to the AKC, the average size of a healthy adult Shih Tzu is between 9 and 10. Dog Group: Sporting Size: 20-25 inches tall, 55-75 lbs Lifespan: 12-13 years Energy Level: Very High Coat: Long, thick, and silky Shedding: Heavy Hypoallergenic. It is affectionate to its family and good with children. Factors Influencing Shih Tzu Lifespan. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Shih tzu. Longevity in dogs is partially determined by their breed. The Shih Apso is a healthy little dog with a life expectancy of 12 to 15 years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Shih Tzu puppies are so small and fluffy that their cuteness often tricks owners into thinking they can delay training. Shih Tzus typically live between 10 and 16 years, with 13 years being the average lifespan. The average lifespan of the Shih Tzu is 13. If a Shih Tzu has certain health issues,. Some of them are so small that they almost qualify for teacup status (literally a dog that can fit inside of a teacup). For example, in 2011 Japan had an overall life expectancy of 83 years and Sierra Leone had a life expectancy of 47. The shih tzu has an above-average life span of around 14 to 16 years, according to the Continental Kennel Club, so with good health care, your shih tzu will be your buddy for some time. Shih Tzus weigh 9 to 16 pounds. But they become “old dogs” at around 10 years old. owners need to distinguish which human food is safe for dogs and which are not. Shih Tzus are not only cute and lovable, but they’re also known to be very smart. If you have a Shih Tzu and are curious about how long they will live, keep reading to learn all about the health issues that can affect a Shih Tzu’s lifespan as well as other relevant information. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. 1 years. There are some simple steps that owners can take to help their pup reach an older age, for. An aging Shih Tzu requires special care and has unique needs, including vet visits every 6 months. A report in the Journal of Small Animal Practice states that the average lifespan of purebred Shih Tzu dogs is 13-19 years. Progressive Retinal AtrophyMeanwhile popular Pugs have a life expectancy of 7. Feb 26, 2020 by Leo Roux. A fun fact, the oldest of this breed has lived 26 years in St. However, they can still suffer from several health issues that impact Shih Tzu life span. Longevity in dogs is partially determined by their breed. In order to determine the average life expectancy of a shih tzu yorkie mix, you must first know the life spans of their parent breeds. The essential medical expenses of a Shihpom can come to around $435 to $535 per year. 151 in ”human years”) is the oldest dog in the world. If your shih tzu is 15 years old, she is equivalent to an adult who is 90. For example, by the time a Bichon Frise puppy reaches her first birthday, she is about 15 years old in human years. The average life expectancy of a Shih Poo is between 13 and 17 years. Shih Tzu’s life expectancy. So what’s the secret to. They have an attitude and can sometimes be moody. Longevity in dogs is partially determined by their breed. It ranges between 10 – 18 years, with some living even longer!. Their hyper attitude fades away gradually with age. Obesity is one health risk for canines; therefore, you must give him the right balance of. Can shih tzu live 20 years? The average lifespan of a Shih Tzu is 13 years, although some can live even longer The average longevity of a Shih Tzu is 13 years, with the majority lasting between 10 and 16 years. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Below is a table of 10 dogs with. Also, from comparing Shih Tzu’s expected age. On average, a Shih Tzu will live for around 13 years. On average, the shorkie, these adorable hybrid dogs, have a life span of around 12 to 15 years. How Long Do Shih Tzus Live? A Shih Tzu’s average lifespan is 13 years. Generally, it is noted that female Shih Tzu dogs live around 1. Shih Tzu aren’t exactly athletes, and because of this, they can often become overweight. There are many variables. Some even live 18 years. Like all other dogs, the Shih-tzu can not control the desire to. Longevity in dogs is partially determined by their breed. The method developed by the Purdue University veterinarian researchers took into account the lifespan and size of Shih Tzu in converting Shih Tzu age to human age. So, a dog age 2 is equivalent to a human age 24, while a dog age 10 is equivalent to a human age 64. On average, Shih Tzus have a lifespan of 10 to 16 years. While it is not typical for Shih Tzus to live for 25 years, they can have a longer lifespan under favorable conditions. 1. The life expectancy of a Shih Tzu can be impacted by a wide range of factors, though. The number of male to female Shih Tzu were almost equal, with just slightly more males (54%) than females (46%). The first breed on the list; the New Guinea Singing Dog is considered to be the rarest dog breed in the world. It pays off to be aware of your Shih Tzu's feelings and demonstrate extra love and understanding to ensure a pleasant experience for everyone involved. Jack. Genetics . Longevity in dogs is partially determined by their breed. The first breed on the list; the New Guinea Singing Dog is considered to be the rarest dog breed in the world. The average lifespan of a Shih Tzu is between 10 and 16 years. How to use the dog years calculator? Select a breed, enter your dog’s age, click on the calculate, and the dog years to human years converter calculates the result. Living with Shih Tzu. Longevity in dogs is partially determined by their breed. The Spruce / Kevin Norris. The Shih Tzu's life expectancy can vary but on average they live 10 to 18 years. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. 1 years. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Originating in China, the Shih Tzu is an ancient breed prized as a lapdog and companion. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Most Shih Tzu will live into their early teen years and are considered a senior dog between 9 and 10 years old. 10-16 years Shih Tzu; Lifespan: 14-16 years Havanese; Lifespan: 12-15 years Lhasa Apso. However, like all breeds, there are certain health concerns that can affect their longevity. The average shih tzu lifespan range is longer than that of most toy breeds and larger dogs. The oldest living Shih Tzu as of 2021 is Tutsy, born in September, 2003 in Liverpool, England. Responsible breeding and genetic testing, a high-quality diet, and regular vet check-ups are essential for keeping your Shih Tzu healthy and happy. But there are Shih Tzus who die in their early years as well. However, their life span can be impacted by factors such as breeding, genetics, and health conditions. Inbred dogs have a risk of carrying genes. The shih tzu, a teddy bear come-to-life, could be by your side for quite a long time. What is the life expectancy of a Shih Tzu Maltese Mix?. The average lifespan of the Shih Tzu is 13. The Shih Tzu's life span is a range of 10 to 16 years. Caring for a Shih Tzu includes keeping them out of high heat and water (two things they don’t do well in). Despite this. But they become “old dogs” at around 10 years old. This figure varies depending on how old a Shih Tzu gets to be. Shih Tzu Health Issues. These dogs were bred to be companions and require short daily walks and playtime. When it comes to the life expectancy of Shih Tzus, females live longer than male companions. How to use the dog years calculator? Select a breed, enter your dog’s age, click on the calculate, and the dog years to human years converter calculates the result. The average life expectancy, according to the Great Dane Club of America, is about 7–10 years. Longevity in dogs is partially determined by their breed. Year two for a dog equals about nine years for a human. A Shih Tzu dog, known for its distinctive long haired coat, has an average lifespan of 12 to 16 years. A Shih Tzu dog – famous for its distinct long-haired coat — will live to approximately 12 to 16 years. 16 years; Boxer 10. If your shih tzu is 15 years old, she is equivalent to an adult who is 90. Shih tzu. 02 of 16. Longevity in dogs is partially determined by their breed. If you have a Shih Tzu. One of the most important factors that can affect a Shih Tzu’s life expectancy is genetics. Shih Tzus have a life span of between 10 and 16 years, with the average length being 13 years. Beagle: 10-15 years. Inbreeding vs Cross Breeding. There is the. Depending on their size and. Though a toy breed, he is sturdy at 9 to 16 pounds, making him easy to own in a variety of household settings. Toy Shih Poos live for 10 to 12 years. Shih Tzu aren’t exactly athletes, and because of this, they can often become overweight. This number, though. Longevity in dogs is partially determined by their breed. Genetics, diet, exercise, healthcare, and overall quality of life significantly determine how long a Shih Tzu will live. A hybrid cute dog that doesn’t shed much. Longevity in dogs is partially determined by their breed. 9 years. a 1-year-old Shih Tzu is 15 in human years; a 2-year-old Shih Tzu is 24 in human. The dog would have lived for 12 to 16 years if the average expected lifespan were converted to human years, which is between 50 and 80 years. The life expectancy at age 0 reported in the current study for dogs under primary veterinary care in the UK in 2016 was 11. With diligent care from responsible owners, Shih Tzus can live. 06 of 26. Their friendly attitude and robust lifestyle affirmatively affect the Shih Tzu. The Shih Tzu has long silky hair and their double coat can be seen in various colors like gold. The world’s oldest Shih Tzu lived for 23 years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. A Shih Tzu can be perfectly content getting. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. This toy breed is commonly known for its independence and ability to thrive in different environments. A few years ago there were reports of a Shih Tzu alive and well into his early twenties, which was pretty mind blowing. This means that 11 years in a human's life would be equivalent to around 66 years in a dog's life. The method developed by the Purdue University veterinarian researchers took into account the lifespan and size of Shih Tzu in converting Shih Tzu age to human age. The reality is that the lifespan of a Shih Tzu is just an approximation, and there are always exceptions. Both are sexually mature and physically grown but still a bit lanky. For most small dogs, including the Shih Tzu, the average life span is approximately 15 --16 years. Healthy shih tzu dogs can live to be any age between 10 and 18, but have an average life span of 13 years. Longevity in dogs is partially determined by their breed. 4. Longevity in dogs is partially determined by their breed. Most toy poodles have long, happy and healthy lives and can live to be 18, although the breed’s average life span is 13. Shih tzus have a long life span and often live up to 16 years. There’s a common misconception that one human year is equal to seven dog years. But this is just the average Shih Tzu life span. How old is a Shih Tzu in human years? As a general guideline, though, the American Veterinary Medical. Dog BreedThe shih tzu–poodle, also known as a shih-poo, mix is a small, friendly mix that might be good for people with allergies. Rufus. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. The average lifespan for a Shih Tzu is 10-16 years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. Cancer is the leading cause of death for all dog breeds. On average, a healthy Shih Tzu may live for about 12 to 16 years. Petersburg, Russia), lived to. Longevity in dogs is partially determined by their breed. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. The average lifespan of a Shih Tzu is 12-16 years, with the oldest recorded individual living up to 23 years. Longevity in dogs is partially determined by their breed. 67 years on average without any exceptional circumstances. Longevity in dogs is partially determined by their breed. The shih tzu has an above-average life span of around 14 to 16 years, according to the Continental Kennel Club, so with good health care, your shih tzu will be your buddy for some time. Therefore, you need to make sure there’s. Great Dane: 7-10 Years. Shih Tzus weigh 9 to 16 pounds. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Dog years are multiplied by seven to get a human age, as a dog lifespan is a seventh of a persons. Shih Tzus are not only cute and lovable, but they’re also known to be very smart. Height (Female): 8 to 14 inches. In return, he needs a lot of attention and human companionship. Longevity in dogs is partially determined by their breed. On the other. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. They can learn to understand the human language, but it takes time and repetition. Shih tzu. 45 years; German Shepherd Dog 10. The average life span of a Shih Tzu is about 10 to 18 years, according to the American Kennel Club (AKC). In fact, while it’s not uncommon for a Shih Tzu to live to 16. Longevity in dogs is partially determined by their breed. TEMPERAMENT: Friendly, intelligent, playful, alert, loyal, lively. Of course, there are always those dogs that significantly outlive their expected life span. Longevity in dogs is partially determined by their breed. At the age of 8 to 9 years, the vet may declare this if the Shih Tzu has specific. This puppy dream of many dog lovers, the Shih -Tzu, when it is raised and healthy, lives between 10 to 15 years. Learn How To Calculate Dog Years To Human Years. It’s not that simple, as you have to take into consideration the size differences over different breeds. Instead of multiplication, we have to check the dog’s weight, breed, and health status. Life Expectancy: 10-18 years. The life expectancy of Shih Tzus is determined by their diet, exercise routine, veterinary care, lifetime care, and genetics. Some Shih Tzu even live into their mid-teens, and many do live into their early teens. Weight: 18-29kg. As we discussed, their lifespan could be increased by a few years by taking care of your furbaby correctly and looking after the factors that affect their lifespan positively. The dog would have lived for 12 to 16 years if the average expected lifespan were converted to human years, which is between 50 and 80 years. And by 10 months of age, they are considered to be an adult. Double/Long. The longest living Shih Tzu recorded to date was 23 years old – named Smokey. How to use the dog years calculator? Select a breed, enter your dog’s age, click on the calculate, and the dog years to human years converter calculates the result. While Marnie wasn’t the oldest Shih Tzu ever, she is probably the most famous. A general way to calculate the comparison of age to humans is to multiply a larger dog's age by 8. However, there are many other factors that also affect how long a dog will live such as diet, exercise, and whether or not they are spayed/neutered. Some medical problems that this breed is predisposed to include: Obesity. Some Shih Tzu puppies will stop growing by the age of 9, 10 or 11-months old. Today, as a general rule, the American Veterinary Medical Association states: The first year of a medium-sized dog equals around 15 human years. For example, a Rottweiler typically has a lifespan of 8-10 years while a Shih Tzu typically has a lifespan of 12-15 years. They age and grow slower than most of the larger breeds, which enables them to live that much longer. Shih Tzu. the transcendence of human desire. However, they can still suffer from several health issues that impact Shih Tzu life span.