How to tell if your dog is in pain (and what to do if they are)

If you live with a pet, you might feel like you can almost read each other’s minds.

You might even have experienced your pet responding to your emotional state. Animals seem to have impressive skills at detecting our state of health too.

However, new research suggests that many dog owners are not skilled in recognising pain in their pets as they might like to think. This could have significant consequences for the behaviour, health and welfare of our pets.

As a migraineur, I am amazed at how my dogs cope with me when a migraine hits. They seem to recognise the pain, distress and incapcacity that comes along with a migraine and respond with more gentle interactions than usual. I hope that when the situation is reversed and they are unwell or in pain, that I too can recognise it.

So, how can you recognise if your pet is in pain and what should you do if you think they are?

Signs of pain

It is easy to assume that an animal in pain will make some noise about it and show obvious physical signs. This might be the case if they are in acute pain as the result of severe injury for example. However, animals often disguise pain as a survival mechanism, and many signs of pain show only as subtle changes in behaviour.

Humans do seem to be able to recognise basic animal emotional states such as anger, fear or joy, through facial and body expressions. But we are less good at linking these cues to more complex emotional states including pain, anxiety and frustration.

The recently published study assessed how good people are at recognising signs of pain in dogs. This was carried out via an online questionnaire completed by 530 dog-owners and 117 non-owners. Participants were given a list of 17 types of dog behaviour. The study participants were asked to rank how likely they thought these behaviour types were to indicate pain, based on their prior knowledge and experience. In reality, all 17 types of behaviour listed suggest a dog is in pain.

The signs of pain provided included obvious behavioural changes such as hesitant paw lifting, reduced play behaviour and changes in personality. Participants were good at recognising these prominent behaviour changes were linked with pain. However, they didn’t realise more subtle indicators such as yawning, lip and nose licking and changes in facial expressions including looking away and increased blinking. These are all warnings that a dog may be suffering.

Notably, participants without dogs were actually more likely to recognise that freezing or turning the head or body away are associated with pain than dog owners. This suggests that dog owners may become complacent in their observations of their dog’s behaviour.

The link between pain and behaviour

The study participants were also asked to assess the potential relevance of pain in three written canine behaviour cases. The participants were not told this, but two were suffering from painful conditions, one outwardly obvious, and one more subtle. The third case was not linked to a painful condition.

Dog owners noted that pain was likely in the case with obvious signs of movement problems – hopping and lifting of legs. This was higher for dog owners than non-owners. In the case where pain signs were more subtle (night restlessness and “shadowing” family members), there was no difference in the ability of dog-owners and non-owners to identify the behaviour as signs of pain.

However, the dog owners with previous experience of pets with a painful condition seemed to be better at recognising signs of suffering. This applied to overt changes in movement as well as body language. This suggests that prior experience can be valuable in developing skills when its comes to pet behaviour.

What is interesting from this study is that there were some discrete differences between dog-owners and non-owners in recognising signs of pain. However, owning a dog was no guarantee that someone would be better able to identify subtle pain indicators.

Previous studies have shown animal species may show pain in different ways. For example rabbits often freeze, which might be considered a fearful response. Facial grimace scales are also increasingly being used to assess pain for a range of species including cats and horses. These assessment tools track minute muscular movements in the face such as tightening eyes.

What should you do if you think your pet is in pain?

Recognising signs of pain in your pet is critical so you can respond quickly. This may also help reduce the risk of dog bites which are often linked to the dog struggling with chronic pain.

Pain can lead to increased noise reactivity too, where dogs flinch or bark loudly in response to sudden, unusual or loud noises.

If you suspect your pet might be in pain because of a sudden change in their behaviour or movement, seek veterinary advice. Soreness can manifest outwardly such as lameness, lethargy or a lack of desire to exercise or play, but it can be easy to miss more subtle signs such as altered blinking, momentary pauses or freezing.

Research indicates that dog owners should be alert to altered sleep patterns, restlessness, clinginess and unusual licking or chewing their body. Even changes in a dog’s ear position, coat quality, texture, or how their coat lies on their skin can indicate underlying discomfort. Reluctance to being touched in specific areas of a dog’s body might also be a sign of discomfort that needs veterinary investigation.

So if you think your dog needs training or a session with a behaviourist because of a gradual or sudden alternation in their behaviour, it’s worth ruling out whether your pooch is acting strangely because they’re in pain first.

In addition to her academic affiliation at Nottingham Trent University (NTU) and support from the Institute for Knowledge Exchange Practice (IKEP) at NTU, Jacqueline Boyd is affiliated with The Royal Kennel Club (UK) through membership, as advisor to the Health Advisory Group and member of the Activities Committee. Jacqueline is a full member of the Association of Pet Dog Trainers (APDT #01583). She also writes, consults and coaches on canine matters on an independent basis.