A healthy animal will have bright eyes, clean ears, eyes and nose and be interested in what is going on around it. The amount of food an animal eats varies a lot between individuals - if your pet's weight remains constant then they are eating the right amount of food. You should be concerned if your pet's appetite or water consumption suddenly changes, or your pet suddenly starts to gain or lose weight.

When in good condition a pet's coat should be shiny, soft and free of parasites. Animal's skin ages (just like in people) and may become less elastic and more dry in an older pet.