AAHA Pain Management Guidelines for Dogs and Cats

The American Animal Hospital Association published an updated set of Pain Management Guidelines for Dogs and Cats in 2022. The document gives clinics a structured, evidence-based framework for finding pain and treating it, and it positions analgesia as a standard part of the care plan rather than something added once a patient already looks uncomfortable. Whether you work in practice or you are simply trying to understand what your own pet should be receiving, it is a useful reference point.

Why Untreated Pain Is a Clinical Problem

Pain is not only a welfare concern. Left untreated, it slows recovery, suppresses immune function, and produces behavioral changes. That is the reasoning behind assessing pain as soon as a patient walks into the clinic instead of waiting for an obvious signal.

Many of those signals are quiet. A drop in appetite, a change in how an animal holds its body, or a reluctance to move can each point toward discomfort. The guidelines answer this with multimodal care that pairs medication with non-drug therapies.

Pain as the Fourth Vital Sign

One of the central ideas in the guidelines is that pain should be scored alongside temperature, pulse, and respiration. Making it a routine measurement takes the guesswork out of the conversation and gives the team something to track over time.

Validated scoring tools make that practical. The Glasgow Composite Measure Pain Scale and the Feline Grimace Scale are both named as options (Steagall and Monteiro, 2019). Applied consistently, they help a team tell whether a plan is working or needs adjusting.

Building a Multimodal Plan

Multimodal analgesia means reaching pain through more than one mechanism at the same time. The classes named in the guidelines include:

• NSAIDs, aimed at inflammation
• Opioids, for pain relief
• Local anesthetics, which block sensation at the site
• Adjuvant medications such as gabapentin

The guidelines offer a concrete example. A dog recovering from surgery might receive an NSAID for inflammation, an opioid for pain relief, and cold therapy to bring down swelling. Each piece is doing a different job, which is the whole point of layering them.

Treating Ahead of the Pain, and Beyond Drugs

Preemptive management is the second pillar. Analgesics given before a surgery or procedure reduce the overall pain response, and the guidelines connect that to a smoother, faster recovery.

Non-pharmacologic care fills out the rest of the plan. Laser therapy, acupuncture, massage, and physical rehabilitation are all listed as ways to support a patient without adding drug side effects. They are meant to work alongside medication, not stand in for it.

Where Owners Fit In

Animals rarely announce pain out loud. What owners notice instead is hiding, less interest in play, or irritability that seems out of character. Those observations carry real weight, because they are often the first evidence anyone has that something has changed.

The guidelines frame pain management as a partnership. Owners watch and report; the veterinary team builds a plan for that individual animal and keeps revisiting it. Regular follow-ups, medication reviews, and wellness checks keep the approach proactive rather than reactive.

Good pain care draws on compassion, science, and steady observation together. If you suspect your dog or cat is uncomfortable, your own veterinarian is the right person to examine them and decide what belongs in the plan.