NAVTA Practice Test 2026 – All-in-One Guide to Master Your Certification!

Changes in behavior, such as aggression or withdrawal, are common signs of pain in animals because animals instinctively conceal their pain to avoid showing vulnerability. When experiencing discomfort, an animal may become more aggressive due to irritation or a desire to defend itself from perceived threats. Alternatively, withdrawal can occur as an animal seeks solitude, distancing itself from activity or interaction that may exacerbate its discomfort.

This behavioral change serves as a crucial indicator for pet owners and veterinary professionals, assisting in identifying when an animal is in distress or suffering. Recognizing these signs can lead to timely interventions and appropriate pain management, ensuring the animal's health and well-being.

In contrast, increased appetite, excessive grooming, or frequent barking are less reliable indicators of pain. While these behaviors can indicate other health issues or emotional states, they do not directly correlate with pain in the same way changes in aggression or withdrawal do.