When you’re spending time with your rabbit, you might be able to sneak in a mini exam of sorts. Just be ready to stop if your buddy gets stressed.

Start on the front half by watching how your rabbit breathes—it should be even and relaxed without increased effort. A rabbit can’t breathe with its mouth open, but note if you see the neck extended or nostrils flaring.

Then look at the eyes, noting squinting, redness or discharge. Swelling or cloudiness are also abnormal. Likewise, something’s off if you see crust or discharge just inside the ear, especially if there’s a bad odor. Sneezing, nasal discharge or facial swelling is also problematic. And drooling or bony swellings along the jaw could be signs of dental disease.

Any of these abnormalities warrants a visit to the veterinarian for further evaluation.