Heart Murmur in Dogs – Causes & Symptoms

Heart Murmur in dogs


Heart murmur in dogs is an abnormal heart condition in dog breeds. It is usually heard with the help of a stethoscope. It is said to be a sort of scary problem for dogs. According to the sources, the heart murmur affects the 5 years old dogs or young dog breeds per se. It attracts 60 % of dog breeders. Moreover, it is caused by the turbulence of blood flow in the heart. This heart murmur can also be identified as the physics heart murmur or the innocent heart murmur as well.

What Do You Mean By The Heart Murmur? 

A heart murmur is a state of condition where a dog suffers from serious health issues. Thus, in that case, the owners should panic and be concerned with a good vet immediately. Although it is very much important to know that heart murmur is not the name of a disease. It is generally caused by several conditions only. Although in the older dog breeds, a heart murmur is commonly caused by cardiac disease or any other problem outside the heart.

What Are the Types of Heart Murmur? 

Some different types of heart murmur are being found in the dogs and identified by the recognised vets. There are three types of heart murmur are – systolic, diastolic, and continuous. Moreover, the differentiation of these heart murmur is based upon the timing for the same.

Systolic Heart Murmur 

The systolic heart murmurs is a state of condition where heart murmurs occur when hearts contract. 

Diastolic Heart Murmur

The diastolic heart murmur is the state of condition when the heart muscle is relaxed in between the beats. 

Continuous Heart Murmur 

The continuous heart murmur is a state of condition where the heart murmur occurs throughout with the regular heart beating. 

Also, Read – Can dogs Eat Broccoli? Is it Good For their Heath? 

What Are the Causes of Heart Murmur? 

There are several reasons which encounter the causes of heart murmur are as follows – 

  • There are several types of heart disease and defects, which adversely lead dog breeders towards the heart murmur.
  • Although heart murmur can also be caused due to the irregular flow of blood or the disturbance in the flow of blood.
  • In addition to this, the systolic murmur in dogs can be caused due to anaemia, heartworm disease, hyperthyroidism, cardiomyopathy, aortic valve insufficiency, mitral and tricuspid heart failure, systolic anterior mitral motion (sam), endocarditis of the mitral and tricuspid valve etc.

Heart Murmur in dogs

  • There are many different diseases as well, which caused or affect the heart murmur. 
  • Moreover, coming on to the diastolic murmurs in dogs, which is caused due to aortic insufficiency etc. 

Also, Read – Can dogs eat Cheese? Why & Why Not? 


Conclusively, there should be proper rational decision shall be taken when a dog is being detected with a heart murmur. Although there is no sign by which heart murmur can be detected early or at the initial stages. Thus, the owners all take their furry pets to regular vets checkups. The regular heart murmur is a serious matter of concern for pet owners. Although as a matter of fact, different dog breeds have different ways of coming out of this condition. Since it’s our collective responsibility to make this world a better and beautiful place for everybody.


How serious is a heart murmur in a dog?

A heart murmur is a very serious issue to look at but they didn’t are a cause for panic. Moreover, most of the heart Murmurs are resolvable while others take time on their own. 

How long do dogs live with heart murmurs?

The answer to this question is completely depends upon every individual dog breed. Some dogs can live many years after being diagnosed with a Heart murmur. While on the other hand, some dogs can live only a few years after being diagnosed with a heart murmur. Thus, it’s a matter of luck as well. 

What happens when a dog has a heart murmur?

A heart murmur is simply a condition where the heart tends to beat abnormally or not in the way that it use to be. Although as a matter of fact, it’s not an actual disease per se. As the murmur is the vibration or Change in the regular heartbeat.

When should I worry about a heart murmur in my dog?

There are several health conditions if the owner’s suspects they shall meet or concern with a good vet Immediately are as follows – 

Coughing, Congestion, Change in the heartbeat, Maximum Weakness, and intolerance etc. 

When should I be concerned about a heart murmur?

The most common issue, which needs to be concerned is when to see a doctor. As in most cases, the heart murmurs is not much serious. Although if the owners suspect any issues of a heart murmur, then they shall immediately concern with a good vet. 

What do you feed a dog with a heart murmur?

They have to have a balanced diet for their body. Although some well-balanced diets include the Royal Canin® Veterinary Diet Canine Cardiac. Which is very much helpful for their health and the whole nutrients system. 

How much does it cost to treat a dog with a heart murmur?

The estimated general Cost for treating a dog with a heart murmur is cost around $100 – $800 only. Although the other stages and conditions in heart murmurs require Surgery Sometimes as well. 

What breeds of dogs are prone to heart murmurs?

Here is the list of some dogs breeders, who do have prone to have some heart murmurs are as follows  – 

  • Boston Terrier
  • Cavalier King Charles Spaniel
  • Chihuahua
  • Fox Terrier
  • Miniature Pinscher
  • Miniature and Toy Poodles
  • Miniature Schnauzer
  • Pekingese

What are the end stages of congestive heart failure in dogs?

The end-stage of congestive heart failure is when dog breeders suffer from heavy problems such as problems in Breathing and the loss of appetite as well. Although these problems can also lead to the sudden death of the breed sometimes. Several health medications and treatments can help them to beat this congestive heart failure. 

Do dogs with heart murmurs sleep more?

They might be Sleep more or rest on more than the usual basis. Although some of the pills also contain the ingredients that make them sleep more than usual. 


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