How Long Do Chihuahuas Live?

Chihuahua Lifespan – How Long Do Chihuahuas Live?

The Chihuahua is a small dog breed with an average lifespan of 12 to 20 years. Smaller in size than most other dog breeds, they are known for being loyal and affectionate companions. Chihuahuas are usually the smallest breed of dog and are favored for their cute, outgoing personalities. They are also very healthy and hearty breed and can live a long and happy life when given the proper care and nutrition. Of course, there are some health issues to watch out for with Chihuahuas, but if you take good care of your Chihuahua they should remain happy and healthy throughout their entire lifespan.

Chihuahua Lifespan – How Long Do Chihuahuas Live?chiwa

The average lifespan of a Chihuahua is 12–20 years. Generally, the smaller the dog, the longer they tend to live. Chihuahuas are known to be small dogs but they can live up to 20 years with proper care and attention. This is because Chihuahuas tend to age more slowly than larger breeds. A healthy, well-cared-for Chihuahua can live an active, long life and may even surpass the 12-20 year lifespan. However, it is important to provide special care for senior Chihuahuas. Proper nutrition, daily exercise, regular veterinarian check-ups, and a lot of love will go a long way in promoting a long, healthy life for your Chihuahua.

Who Is The Oldest Chihuahua in The World?

At the time of this writing, the oldest living Chihuahua is Nutmeg, a 19-year-old Chihuahua from Michigan. She was born on May 19th, 2001.

Chihuahua Lifespan

Chihuahuas typically live between 12 and 20 years. On the higher end of the spectrum, some Chihuahuas have been known to live up to 23 years.

What’s the Average Lifespan of a Chihuahua?

The average lifespan of a Chihuahua is 12 to 20 years.

Obese Chihuahua Lifespan

Obese chihuahuas may have a shorter lifespan due to the strains excessive weight can put on their body. Obesity increases the risk of developing heart disease, diabetes, joint diseases, respiratory problems, and other medical conditions. It can also interfere with a chihuahua’s blood sugar levels, which can lead to a decrease in energy levels and can decrease the lifespan. Obesity can also cause too much strain on the chihuahua’s body when running or walking, which can put the animal at risk for injury. All of these health complications associated with obesity can lead to a decrease in life expectancy for an obese chihuahua to 14 years instead of 20 years on average life expectancy.

How Long Do Chihuahua Terriers Live?

The average life span for a Chihuahua Terrier is between 12 and 14 years. Depending on nutrition, genetics, and overall health, some Chihuahuas can live even longer. Adequate exercise, balanced nutrition, regular veterinary checkups, and plenty of love are important factors for extending the lifespan of a Chihuahua Terrier.

How Long Do Chihuahuas Mix Live?

Chihuahuas are long-living dogs, and their average life expectancy is between 12-20 years. Mixed-breed Chihuahuas can have a wide range of life expectancies depending on their size, health, and genetics. However, on average, mixed-breed Chihuahuas will enjoy a life span between 12-18 years.

Why Do Chihuahuas Live So Long?chiwa 3

Chihuahuas have a longer lifespan than most other breeds, normally living between 12 and 20 years old depending on their size, health, and genetics. There are several factors that contribute to the long lives of Chihuahuas, such as their size, low-fat diet, metabolic rate, hybrid vigor, and exercise.

Size is likely the main reason for the Chihuahuas’ long lifespan. As a small breed, they don’t experience the same wear and tear on their bodies from activity and age as larger breeds do. This can help them live longer and healthier lives as they age.

Chihuahuas also benefit from a low-fat diet, since the fat content in foods can add extra stress on vital organs like the heart. Since they are already such small dogs, their organs are more delicate and require a healthy diet to stay strong.

Chihuahuas also have a very slow metabolic rate, meaning they process food slowly and store energy for later use. This slow metabolism helps their small bodies remain healthy and strong.

In addition, Chihuahuas benefit from hybrid vigor, which is a term used to describe the beneficial effects of combining two breeds of dog. Since Chihuahuas are a mixed breed, they don’t experience the same genetic-based stresses and diseases that purebred dogs experience.

Finally, regular exercise is essential for any breed, but for Chihuahuas, it is especially important. The exercise helps their small bodies stay fit and trim, while also providing mental stimulation which can help them mentally as well.

Why Do Some Chihuahuas Live Longer Than Others?

There are several factors that can influence how long a Chihuahua lives. Proper veterinary care, a quality diet, an indoor lifestyle, plenty of exercises, and a loving family are all important to extend your Chihuahua’s lifespan. Genetics and hereditary health problems can also play a role in how long a Chihuahua will live. Even though each individual may vary, the average life expectancy for a Chihuahua is around 15 years.

The 4 Life Stages of a Chihuahuachiwa 2

  1. Puppy Stage (0-6 Months): During this stage, Chihuahuas grow quickly. They are learning the basics of potty training, basic commands, and how to get along with other animals.
  2. Adolescent Stage (6-12 Months): During this stage, Chihuahuas will begin to mature and become more independent. They may start to develop some behavioral problems. This is an important time to start training them.
  3. Adult Stage (1-7 Years): This is the longest life stage of the Chihuahua. They are considered fully grown and can be very loving and loyal companions. They will start to become more settled and begin to mature more.
  4. Senior Stage (7+ Years): During this stage, the dog’s health will start to decline and they may have hearing and vision problems. It is important to watch for any other signs of illness and take your Chihuahua to the vet for regular check-ups. They may become more needy and look for more attention from their owners.

How To Tell Your Chihuahua’s Age

To tell your Chihuahua’s age, start by examining their teeth. The growth of the teeth can be a good indication of age. Younger dogs tend to have shinier, whiter teeth, while older dogs tend to have more yellowed teeth with signs of wear and tear. The tooth development of Chihuahuas tends to follow the same patterns as larger breeds but at a faster rate. Puppies tend to have 28 baby teeth which usually fall out between the ages of 3 and 6 months. By about 7 months old, Chihuahuas should have all of their adult teeth and a full set of 42 by their first birthday.

You may also be able to gauge your Chihuahua’s age by examining their coat. When younger, Chihuahua’s coats tend to be thicker and shinier. As they age, the coat may become dull and sparse.

Looking at your Chihuahua’s weight and body shape are also helpful for determining age. A healthy weight for a full-grown adult Chihuahua is between 2 and 6 pounds. Generally, puppies will look chubbier around the head and neck than adults and will slim down with age.

Finally, note that Chihuahuas tend to reach maturity quicker than larger breeds. Most will be fully grown by 1 year of age, while some may mature faster.

SEE ALSO: How Many Nipples Does A Dog Have?

Factors That Impact a Chihuahua’s Lifespanchiwa 1

  1. Diet: The diet of a Chihuahua directly impacts their quality of life and lifespan. Chihuahuas should receive high-quality food that is specially formulated for their size. Feeding them too much or too little of the wrong food can lead to obesity, diabetes, dental problems, and even a shorter lifespan.
  2. Weight: Just like humans, Chihuahuas with a healthy weight are more likely to live longer than those that are overweight or obese. Being overweight can lead to heart disease, diabetes, arthritis, breathing problems, and a significant decrease in lifespan.
  3. Exercise: Chihuahuas need daily exercise to stay healthy and to maintain a long life. Without enough physical exercise, they can become lazy, and this can lead to health issues such as obesity, which can shorten their lifespan.
  4. Genetics: Chihuahuas can inherit certain health issues from their parents, which can increase their risk of developing certain conditions. Regular veterinary check-ups can help to detect any health issues your Chihuahua may be at risk for and can ensure they get the necessary care.
  5. Vaccinations: Regular vaccinations are important for all Chihuahuas and can help to keep them safe from potentially fatal diseases, such as Rabies and Parvovirus.
  6. Grooming: Chihuahuas need regular grooming to keep their coats clean and free from pests which can cause health problems. Regular grooming can also help to detect skin issues before they become more serious.
  7. Health Check-ups: Regular check-ups with the veterinarian are essential for the health of a Chihuahua and are a great way to detect any health problems before they become too serious.

Common Chihuahua Health Issues That Affect Their Lifespan

  • Congenital Heart Disease: Chihuahuas are prone to a number of congenital heart defects which can affect their lifespan. These heart defects may be present since birth and can cause problems with breathing, fatigue, and poor exercise tolerance.
  • Hypoglycemia: Low blood sugar is a common issue seen in small dogs, especially in Chihuahuas. It can cause weakness, lethargy, confusion, and shaking.
  • Tracheal Collapse: Chihuahuas, due to their size, are at risk for collapsing airways due to their small and fragile tracheas. This can cause shallow breathing, increased cough, and exercise intolerance.
  • Luxating Patellas: This occurs when the knee cap slips out of its normal position in the joint. It can cause pain, lameness, and even arthritis.
  • Obesity: Unlike most dogs, Chihuahuas have a higher risk of developing obesity due to their small size. Obesity can cause a number of different health problems, including digestive issues, heart failure, and even diabetes.
  • Eye Disorders: Chihuahuas are prone to different types of eye issues, including cherry eye, dry eye, eyelid abnormalities, and glaucoma. These all can affect their vision and cause pain and discomfort.

Tips to Make Your Chihuahua Live Longerchiwa 4

  1. Provide Proper Diet: Feed your Chihuahua a healthy, balanced diet to ensure they get all the nutrients they need. Avoid feeding table scraps as these may contain unhealthy ingredients that could lead to weight gain or other health issues. Stick with high-quality food specially formulated for Chihuahuas.
  2. Keep Your Chihuahua at a Healthy Weight: Chihuahuas are prone to obesity, which can have damaging effects on their overall health and increase their risk of chronic illnesses. Monitor your pet’s weight and make sure to adjust their diet and exercise accordingly.
  3. Provide Regular Exercise: Chihuahuas need a minimum of 30 minutes of activity a day. This can include walks, running in the backyard, or playing games with your pup. This can help them stay in shape and stay healthy.
  4. Practice Proper Grooming: Regular brushing, bathing, and nail trimming are essential for your Chihuahua’s health. These routines can help maintain their coat and skin and reduce the risk of infections.
  5. Socialization: Keep your Chihuahua social. This can help them avoid stress and mental issues which can have a negative effect on their overall health.

SEE ALSO: Can Dogs Have Autism?


Q. Can a Chihuahua live for 25 years?

A. No, Chihuahuas typically have an average life span ranging from 12 to 20 years. Very rarely may they live longer, but 25 years is highly unlikely.

Q. What is the main cause of death of Chihuahuas?

A. The main cause of death for Chihuahuas is old age. Other causes of death for Chihuahuas include diseases and medical complications like heart disease, cancer, and diabetes.

Q. How long does a chihuahua live?

A. Typically, chihuahuas can live anywhere between 12 and 20 years, with an average life expectancy between 15 and 18 years.

Q. How long do chihuahuas live with congestive heart failure?

A. The life expectancy of a chihuahua with congestive heart failure can vary depending on the severity of the condition, as well as the quality of care and lifestyle. In the best-case scenario, these dogs can live up to 3-5 years with treatment and management. In some cases, however, the condition can be fatal, even with treatment.


In conclusion, Chihuahuas are generally long-lived, with the average lifespan ranging from 10 – 18 years. However, various factors can contribute to a Chihuahua’s life expectancy, such as anatomy, health conditions, and diet. Knowing the specific needs of your Chihuahua and providing the appropriate diet, exercise, and medical care are the best ways to ensure your Chihuahua lives a long and healthy life.

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