What is the lifespan of a Chihuahua?

“What is the lifespan of a Chihuahua?”

Longest-living and smallest dog breed, a Chihuahua. Don’t longest-living make you curious? How long is the lifespan of the longest living dog breed? What causes Chihuahua’s death? What health problems Chihuahuas are usually prone to? How can you expand the lifespan of Chihuahua?

Having a longest-living dog breed and don’t know the answer to these queries is a shame. Thereby, I have resolved all these queries, and stated facts of the oldest Chihuahua in our blog, “What is the lifespan of Chihuahua”? 

Let’s dig deeper into it.

What is the lifespan of a Chihuahua?

“Smaller the dog breed, the longer they live” If you are really a dog person you must have heard this somewhere, however, guess what? I know about a dog breed among the smallest dog breeds, which not only rank higher in the above-mentioned criteria but are also known as the good family pets.

Chihuahua, it is! Chihuahua tops the list of longest-living dog breeds. The lifespan of a chihuahua tends to be is between 15 to 20 years. If you are looking to adopt a dog breed with small stature yet long living? Now, you know which breed you should opt for.

After knowing Chihuahua’s life span, What’s the next question that arises? That must be: Why do Chihuahuas live longer? According to researchers, the reason can be due to fewer chances of them getting any serious illness. In my thoughts, Chihuahua being low maintenance plays a role too as they are less likely to get neglected. 

Even if they are low maintenance, they do need some basic care. Upon negligence, it can result in your Chihuahua getting some serious issues. What impact will these issues cause? Shortening of longest living dog breed’s lifespan. Want to know what are these issues? Read the whole heading right below.

What do Chihuahuas usually die from? 

Estimating your Chihuahua life span? Prior to that, you should be aware of the health of your pet. 

We got all the health issues that Chihuahua and Chihuahua mix dogs can suffer. Do read it thoroughly, and observe your pet. If your Chihuahua shows any symptoms, don’t panic. Take it to the veterinarian as all the diseases are curable.

Cardiovascular Diseases

The common cause of old-aged Chihuahua’s death. According to the survey, 18.5% of Chihuahua’s owners reported cardiovascular diseases as the reason behind their chihuahua death. These leading cardiovascular diseases are:

Heart Valve Problems: Irregulate closing and opening of heart valve prevent proper blood flow. You can hear a murmuring sound from your Chi’s chest due to restriction in blood flow.

Heart Failure: Heart valve problems if left untreated can lead to heart failure. Heart fails as low blood flow decreases the oxygen levels too. 75% of Chihuahua usually die from this.

Arrhythmia: Irregular heartbeat rhythm of Chihuahua. Upon severity can cause death. It has no symptoms which make regular visit to veterinarian important.


16.8% of Chihuahua died because of trauma. What can cause trauma to your Chihuahua? Anything shocking like vehicle’s accident, height phobia, being stuck somewhere, etc. Its symptoms are depression, anxiety, aggression, poor appetite.


Your chihuahua can suffer from parasitic, viral, or bacterial infections. In fact, 10.5% death of Chihuahua was caused by it. The most common kind of infections your Chihuahua can suffer are;

Sepsis: If your pup pants, breaths rapidly, or often have a high temperature, it might have a sepsis infection. It can lead to kidney and liver failure if left untreated.

Parvovirus: Parvovirus infects the digestion route and immune area, causing diarrhea and vomiting. Just vaccinate your Chihuahua before head to avoid it.

Distemper: Highly contagious digestive and respiratory infection. Its symptoms include coughing, weakness, diarrhea, and vomiting. You should vaccinate your pet from it too. 

Leptospirosis: The tick disease of dog. It leads to liver and kidney failure. It can be avoided by giving filtered water and keeping your pet away from the rat’s area.

Bladder and Kidney stones

Commonly older males in Chihuahua suffer from it. Accumulation of Calcium causes these stones. If you observe your Chihuahua can’t urinate or having difficulty in urinating, or blood in urine, your pet needs a visit to the vet. It can lead to emergency conditions so get it treated as soon as possible.

Tracheal Collapse

Not a fatal disease but can make your Chihuahua faint. In this disease, air tract collapse resulting difficulty in breathing and chronic honking cough.

Got zero symptoms? Good for you. Still, Vaccinations and regular rounds to vet are a must, if you want your Chihuahua’s health to remain the same.

At what age do Chihuahuas usually die? 

Chihuahuas have a life expectancy of 14 to 20 years. Ever wondered? What is the average age at which Chihuahua die? 15.5 years is the usual age of male Chihuahua death.

Thinking, Why did I state male? Does gender have any impact on it? Clearly, YES. In the case of females Chihuahua, their average age is 1 or 2 more years. The reason is male chihuahuas are more prone to health issues.

When we are at it, I must clear a frequent question Chihuahua owners ask. If small dog live longer then, 

Do teacup Chihuahuas live longer than miniature Chihuahuas? Or How long do teacup Chihuahua live?

 My answer might shock you, but it’s a No-No situation. Teacup Chihuahua’s average age is less than the mentioned age. 12 years, that’s because they have higher chances of getting health problems. Owing to the fact, teacup size is smaller than regular size due to the same reason of unethical breeding. 

To sums it up, it is true that Chihuahua can live up to 20 years. Even below, you can find details about the oldest Chihuahua, although the average age isn’t the same as the oldest. Your Chihuahua may live longer or shorter, it’s all about how you take care of it.

What is the oldest Chihuahua to ever live? 

Time to some on record and off record facts.

On a recorded fact, MegaByte is the oldest chihuahua to ever live. According to Guinness world record, Megabyte died on January 1, 2014. It was a 20-years-old Chihuahua (to be accurate 20 years and 265 days). See? I told you proper care and treatment can make it happen.

Here comes something shocking, and an off-record fact. I represent Maverick, a Chihuahua who lived up to 22 years (data published in 2017). Making it the 14th oldest dog to live. Its owner Dermot Mulroney told Animal Planet Channel that he was rescued, at the age of 3 or 4 that’s why he isn’t recorded on Guinness World record.

 In addition to that, aging being an unstoppable process had made him blind and a Chihuahua with zero teeth. I know you are thinking, Maverick is living a dead life. However, what matters is that love and care make a 20-year life span breed dog live 22 years.

Want to know what my conclusion is? Considering both on-record and off-record facts, the longest lifespan of a Chihuahua is 22 years. I can’t exactly tell you how Maverick is at the present, as there has been no news related to him.

 Curious to see Maverick? You can find him on Animal Planet Youtube Channel.

How to make Chihuahua live longer?

No matter how long your pet could live, it’s always not enough. I being an owner, surely knows the feeling of thinking about your pet’s death. Isn’t it the same for you and every pet owner? Keeping in mind that you’re a Chihuahua owner, I got you some precautionary measures.

I know after reading, you will be like that this is too basic or unnecessary. Some might make you feel oh, that’s something new. Either it’s new, or basic, you shouldn’t ignore them as they have their own significance. Then, let us get started.

Regular Veterinarian Check-up: No matter how busy your schedule you have, you should never miss the vet check-up. Moreover, how healthy your Chihuahua looks. Few diseases are hard to observe by an ordinary pet owner that’s why a vet check-up is a must stop.

Active Routine: Chihuahua being an energetic breed, requires an active lifestyle. It will impact positively mental and physical health.

Vaccination and Multivitamins: If you have read the above paragraph, you must know how vaccination is an important precaution. Due to which I’m going to skip the vaccine part.If you have not read it? Scroll up and read!

The next is multivitamins. Giving a proper diet is good, but sometimes you might not notice vitamin deficiency in your buddy. Due to this, you can ask your vet to prescribe some multivitamins.

Regular Grooming: Dental, oral, hair, scalp, hair, eye, and skincare all come within grooming. In short whole body maintenance. Don’t know? How to take care? You can check out our article on ‘How to take care of Chihuahua?’ 

Healthy Diet: Healthy diet doesn’t necessarily mean expensive dog food. What I mean by a healthy diet is a diet that fulfills your chia’s nutritional requirements. Does it affect lifespan? Definitely, you know what they say; “Good food, Good life” I can swear by that.

Chihuahua Weight Management: Chihuahua has a tiny, fragile body, and overweight isn’t of any help. No matter how appealing they look while asking for food. Don’t surrender to them as it can lead to obesity.

 A gentle reminder, Obesity isn’t a condition, it’s a health problem.

Neuter and spay your Chihuahua: Spayed female Chihuahua live more than unspayed female Chihuahua. In the same way, it works between neutered male Chihuahua and unneutered male Chihuahua.

I think that should be enough to know.

How do I know If my Chihuahua is dying? 

Losing any pet is hard still we have to say goodbye. That’s how life works. We collected data from the owners who have gone through this tough time. It will make it easy to know when it’s time.

The tell-tale signs of knowing it, are:

Disinterest in everything: Is it their favorite toy, exercise, or any habitual activity, they will show no interest or excitement.

Stop eating and drinking:  Refusal to dishes is quite normal however, refusal to the favorite dish isn’t. If he isn’t eating and drinking, it’s an alarming situation for you.

No change in posture: Disinterest in everything causes them to stay in the same position the whole day. Sign that body systems aren’t working.

Improper Body Coordination: Loss of control on the limbs while moving is another sign.

Difficulty in Breathing:  Long gaps while inhaling and exhaling air.

Look for comfort: Researchers say that dogs know when their time is near. Your Chihuahua might seek comfort from you, so don’t let them face it alone.

Disclaimer: Few of the above signs can be health issues symptoms, therefore take your Chihuahua to the vet first.


 Owning the longest living dog breed is more than a flex. It’s a long-term commitment. Ignorance, irresponsibility, and not being consistent can shorten it. That can leave you a regret scar too.

To avoid this griefful regret, first of all, you must know about your Chihuahua and its body. Secondly, how to expand their lifespan to the fullest. Both of them are possible, as you have read about the oldest Chihuahua. 

How about making your Chihuahua one of the oldest Chihuahua too? For that, you need to know the knowledge in our blog: “What is the lifespan of a Chihuahua?”

Do share your thoughts and experience. I will be waiting for it.



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