system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do veterinarians determine if animals have certain medical conditions, when normally in humans the same condition would only be first discovered by the patient verbally expressing their pain, etc.?
gpt
Most owners (not all, sadly) notice when something is different. The animal limps, stops eating, pees too much, acts weird.

The vet examines the animal carefully and notes what isn’t right. Heart rate and sounds, temperature, how the body feels under their hands, etc.

Then testing is recommended based on the vet’s education, experience, and the clues the vet has from the history and examination. Bloodwork, imaging like x-rays, and more specialized stuff.

Animals don’t necessarily talk to vets, but owners do, and the body speaks for itself.