How can it be determined if a pet is in pain?

Pets may exhibit various signs of pain, including changes in behavior such as increased aggression or withdrawal. They might also show physical signs like limping, difficulty moving, or reluctance to be touched in certain areas. Other indicators of pain include changes in appetite or drinking habits, excessive grooming of a particular area, or unusual vocalizations such as whining or growling. Pets may also become less active or avoid activities they once enjoyed. If any of these signs are observed, a veterinarian should be consulted to diagnose the issue and recommend appropriate treatment.