Pain sensitivity in dogs

In an interesting study conducted by researchers at North Carolina State University showed that pain sensitivity is related to the breed and a dog’s temperament.  

The researchers studied both male and female dogs from ten breeds. They picked the breeds based on how veterinarians rated the breed for pain sensitivity or tolerance. The breeds were: Chihuahua, German Shepherd, Maltese, Siberian Husky, Border Collie, Boston Terrier, Jack Russell Terrier, Golden Retriever, Pitbull, and Labrador Retriever. A total of 149 dogs were tested.

Surprisingly the breeds did not respond as the veterinarians expected. They also found that temperament played a role in the dog’s tolerance for pain. The important fact that was learned from the study is that pain tolerance has a biological basis.

Sue’s Note: When anything such as pain tolerance is common in a breed, it means that selective breeding may, in part, correct the sensitivity. This is important because it makes the dog’s life more tolerable. Also, temperament is another genetic aspect that can be improved with selective breeding. It is also important to realize how pain sensitivity can make a dog dislike training. This is why harsh training methods are never a good idea.

Noise sensitivity could be related to pain in dogs

Perhaps this is one of the more important discoveries in recent years. Researchers found that dogs who show noise fear and/or anxiety may be suffering from pain.

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Dogs who had underlying pain showed greater aversion to areas and a stronger reaction to noise. The researchers concluded that when the dog tenses or trembles from fear, the already underlying pain is made worse by the stress and pressure on the painful muscles and/or joints.

Often when this happens the dog associates the pain with the area or circumstances that he was in when the noise and pain occurred. They found that dogs who have pain associated with noise, associated the noise with a wider range of their environment. For example, if the dog associated pain with a piece of furniture in a room they may tend to avoid the entire room. They also tended to avoid other dogs.

What is very important to be aware of is that dogs who start to show noise fear or aversion later in life are more likely to also be suffering from underlying pain.

This study gives pet owners and veterinarians another tool to use to help diagnose pain that might otherwise be difficult to detect. Therefore, if you have an older dog who suddenly starts to react to noise, it is time for an in-depth examination by your veterinarian.