Skip to Content

The Leading Cause Of Death In Chihuahuas – Chihuahua Lifespan

Heart disease is the leading cause of death in Chihuahuas or lower lifespan, followed by lower respiratory tract disorders and traumatic injuries. While there is no clear sex difference in these diseases, there is some evidence that male dogs have higher incidences than females. Veterinarians should take heart health into account during routine examinations and treatment.

The Chihuahua is a small dog of the Mexican breed. It is named after the Mexican state of Chihuahua. It is one of the smallest breeds of dogs and is generally kept as a companion animal or for dog shows.

What Is The Leading Cause Of Death In Chihuahuas?

death in Chihuahuas

Adult Chihuahuas are at the greatest risk for cardiovascular disease. About one-fifth of the dogs that die of heart disease were over 14 years old. A weak heart can’t pump blood effectively and can lead to a dog’s death. Another cause of death in Chihuahuas in this breed is hydrocephalus, a buildup of fluid in the brain. Chihuahuas have a domed skull and are more susceptible to the condition than other breeds.

Causes Of Death For Chihuahua Puppies

Dominant Attitude

Although some causes of death in Chihuahua puppies remain unknown, understanding the most common cause can give owners peace of mind and protect their other pets. Toxins are also involved in some deaths. 

There are a few causes of death in Chihuahuas puppies. Heart failure is one of the leading causes of death in these dogs. Around 75 percent of all cases are caused by the heart failing to pump blood effectively. Another common cause is hydrocephalus, a buildup of fluid in the brain. Chihuahuas have domed skulls, so they are at a higher risk for this problem than other breeds.

Causes Of Death For Adult Chihuahuas


Cardiovascular disease is the leading cause of death in Chihuahuas, with about 18.5% of adult dogs dying from heart disease. Other common causes of death include trauma and infections. Unfortunately, these problems are not always preventable. 

The first sign of an underlying health issue in your pet is the poor quality of life, accompanied by behavioral changes and a decreased ability to eat or use the bathroom. Regardless of the cause, your pet should have a regular checkup to ensure that nothing serious is causing your pet’s discomfort.

Another underlying health condition in adult Chihuahuas is hip dysplasia. While this is more common in larger breeds, the fragility of this breed makes it more susceptible to such a disease. In addition, injuries sustained during puppyhood may manifest as hip dysplasia as the dog grow old. Other conditions to watch for include hydrocephalus, a condition where the cerebrospinal fluid around the brain begins to collect.

Also read:

What You Should Know About the Teacup Pitbull?
Mini Blue Heeler: What You Need to Know
Teacup Goldendoodle: What Makes Them So Special 

Tips To Help Extend The Lifespan Of Your Chihuahua

Why are Chihuahuas so mean? a complete guide

One of the best ways to extend your Chihuahua lifespan is to keep it in shape. One way to do this is to give it plenty of exercises. Regular walks around the neighborhood, tug-of-war games, or fetch sessions can all help your dog stay healthy. Exercise also helps your dog burn excess fat and build muscle, which will help it resist disease.

Although Chihuahuas usually live between 15 and 20 years, some breeds live longer than others. Maximize your Chihuahua’s life span by choosing premium dog food with no artificial flavors or preservatives. Feed your Chihuahua a healthy, nourishing diet full of vitamins, minerals, and fiber. Avoid feeding your dog leftovers because it can lead to obesity or toxicosis.

Exercise is also an important factor in extending your Chihuahua lifespan. A daily walk with a leash can help keep your dog trim and active. Exercising also helps keep your dog mentally stimulated, which can prevent cognitive disorders in old age.