08/08/2025
Pain is one of the first things we need to consider and either rule out, or address, when we are working with a behavior issue.
Sometimes that can be very difficult.
Working as a team, together, the owner, me and Veterinary professionals, we should try to identify any physical contributors to pain and/or discomfort in the individual.
Why? Because it matters. Thresholds change when pain is involved and can lead to a ‘grumpier’ animal, one that is quicker to snap or bite.
When dogs display concerning behaviours such as growling, snapping, reluctance to be touched, or sudden changes in mood or sociability, pain is a critical factor to rule out. But one common point of confusion for guardians and even some professionals is this: why doesn't the behaviour immediately improve when pain relief is introduced?
Just like humans, dogs have the capacity to remember experiences associated with pain especially if the discomfort was chronic, unpredictable, or occurred during routine activities like being picked up, groomed, handled, or walked.
This phenomenon is often referred to as pain memory, and it explains why a dog may continue to avoid or react negatively to certain actions or environments even after the source of pain has been treated or resolved. It may take 6–8 weeks or more for behaviour to begin to shift.
Here's why:
Nervous system habituation: Once that pain is removed, it can take weeks for the dog’s nervous system to trust that an action (like walking, jumping, or being touched) won’t cause harm.
Behavioural conditioning: If pain was regularly triggered during routine activities, say, being lifted into the car or being petted along the back a dog may have developed conditioned fear responses.
Emotional recovery: Dogs who have felt consistently unsafe in their bodies may need time to rebuild their confidence, even after physical healing has begun.
Because dogs are so good at masking pain and often cope quietly it’s essential to look for small, subtle indicators of improvement rather than expecting dramatic overnight change.
This lag between removal of pain and change in behaviour can make diagnosis difficult. Owners may worry the medication “isn’t working” when in fact, it’s doing exactly what it should but the behavioural shift will take more time and possibly require additional behavioural support to help the dog unlearn old associations and rebuild trust.
In other cases, if pain is only one piece of the puzzle, behaviour may not improve until both pain and anxiety or trauma are also addressed in parallel.