05/09/2025
FUN FACT FRIDAY
PAIN AND BEHAVIOUR
There usually a link between pain and behavioural issues in horses. This is why it is vital to explore potential pain before any behavioural modification occurs.
We cannot rule out pain, even the best vets are not able to easily access every potential area of a horse that could be painful. Research is constantly evolving to diagnose and treat horses experiencing pain. It is vital that we explore all avenues of vet, physio, dentist, farrier, saddle fitter etc. prior to developing a behavioural modification plan.
It can be really frustrating when you are struggling with your horses behaviour and you reach out for help but we direct straight to these people. Trust us, as behaviourists we really do want to help! However, we cannot ignore potential pain in your horse, it is simply unethical. We are not vets and cannot diagnose pain for you but we can advise what may be the best route based on our understanding of equine behaviour and our experience with horses in discomfort. Of course, there is usually advice we can offer to help keep everyone safe and happy in the meantime, but this usually involves management changes we would make during a behavioural modification plan anyway.
Research has suggested how we can identify pain in our horses. Once of the most useful papers is by Gleerup et al (2015), it shows us that horses experiencing acute pain may display these facial expressions:
‘Low’ and/or ‘asymmetrical’ ears
An angled appearance of the eyes
A withdrawn and/or tense stare
Mediolaterally dilated nostrils
Tension of the lips, chin and certain facial muscles
These facial expressions can be fairly subtle, so as owners we need to be aware of these slight changes in our horses to help diagnose and treat pain quickly.
Another study by Ashley et al (2005) highlighted the importance of behaviours such as avoidance or aggression towards handlers and other horses as a key sign the horse was experiencing pain. Interestingly this was more subtle within donkeys, who are typically more stoic than horses.
In addition to this, Dyson (2021) has released research developing a ridden horse pain ethogram. This can help us to identify pain within our ridden horses and gives a clearer idea of when to loop in professional assistance from your vet, physio, saddle fitter etc. It can also be an excellent indicator in working with your vet to diagnose lameness within the ridden horse. The research has shown that typically horses experience 8 or more out of the possible 24 behaviours on the ethogram to represent pain, although there are occasions when a horse displaying less than 8 behaviours was lame.
Overall, we need to ensure that we are listening to the subtle signs our horse is displaying which may represent pain and get these assessed ASAP. It is always worth getting a behaviourist involved as they can help liase their opinions on the horses behaviour with the other professionals involved and, when appropriate, help you create a behavioural modification plan.
References:
Karina B Gleerup, Björn Forkman, Casper Lindegaard, Pia H Andersen. (2015). An equine pain face. Veterinary Anaesthesia and Analgesia. Volume 42, Issue 1. Pages 103-114. https://doi.org/10.1111/vaa.12212.
F H Ashley, A, E Waterman-Pearson, H, R, Whay. (2005) Behavioural assessment of pain in horses and donkeys: application to clinical practice and future studies. Equine Veterinary Journal. 37 (6) 565-575.
S Dyson. (2021) The Ridden Horse Pain Ethogram. Equine Veterinary Education. 34 (7). pp. 372-380. https://doi.org/10.1111/eve.13468.