Small Pet Health: Preventive Care and When to Call the Vet

Small pets hide illness well, because in the wild looking weak attracts predators. The best protection is prevention: a vet who knows small pets, a check-up soon after you get them, a weekly weigh-in, hay-based diets for rabbits and guinea pigs, and quick action when something changes. A rabbit or guinea pig that stops eating needs a vet the same day.

A weekly weigh-in is the easiest health check there is.

Find a Vet Who Treats Small Pets, First

Not every practice sees rabbits, guinea pigs, rats or hamsters often. Before you bring a new pet home, find a vet with small-mammal or exotics experience, save their number, and find out who covers nights and weekends. Book a check-up in the first week or two; it gives your vet a healthy baseline to compare with later.

Simple Checks at Home

Weigh weekly on digital kitchen scales that read in grams. A steady weight is reassuring; a drop is worth a call to your vet.
Watch the food bowl and the droppings. You know what normal looks like for your pet.
Teeth: rabbits' and guinea pigs' teeth grow all their lives. Unlimited hay wears them down. Ask your vet to check them at every visit.
Nails: trim them every few weeks, or ask your vet to show you how.
Coat and bottom: check daily in warm weather, especially rabbits. A dirty bottom can attract flies.

Vaccines, Neutering and Parasites

Ask your vet what your pet needs where you live:

Rabbits: in the UK, vets routinely recommend vaccines against myxomatosis and both types of rabbit hemorrhagic disease. In the US, a vaccine against RHDV2 has been available through vets in many states since 2021. Elsewhere, ask your vet what is available.
Neutering: often recommended for rabbits and sometimes for other small pets, for health and to let pairs live together. Your vet can talk through the pros and cons.
Parasites: your vet can advise on prevention for your pet and your area.

Medicines, parasites and treatments: see your vet or a pet supply store with trained staff. Don't use products meant for dogs or cats on small pets.

When to Call the Vet the Same Day

Call a vet straight away, day or night, if:

a rabbit or guinea pig stops eating or stops producing droppings;
any small pet is breathing hard, can't stand, is bleeding or has been injured;
your pet suddenly seems very quiet, hunched or cold.

Rabbits and guinea pigs can become seriously ill within hours. Waiting until morning to see if it passes is the wrong move.

Kit for Everyday Health Checks

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A digital scale that reads in grams makes weekly weigh-ins easy. Small-animal nail clippers sized for tiny nails make trims safer. A secure carrier makes vet trips less stressful, and a soft brush helps with coat checks. A hay rack keeps unlimited hay on offer for rabbits and guinea pigs, which is the best thing you can do for their teeth and gut.

Frequently Asked Questions

Timing and who to call come up most.

Why does it matter if a vet has small-pet experience?

Rabbits, guinea pigs and other small mammals have their own anatomy, diets and medicines. A vet who sees them often is more likely to spot problems early and treat them safely.

Is it urgent if a rabbit or guinea pig stops eating?

Yes. Call a vet the same day, even if your pet otherwise looks normal. Both species can become seriously ill within hours once they stop eating.

Do small pets need vaccinations?

Rabbits usually do; ask your vet which vaccines are recommended where you live. Guinea pigs, rats and hamsters don't usually need routine vaccines, but they still benefit from check-ups.

How often should my small pet see a vet?

A check-up soon after you get your pet, then at least once a year, and straight away if anything changes.

What is the easiest health check I can do at home?

Weigh your pet weekly on digital scales that read in grams and keep a note. A steady weight is a good sign; a drop is worth a call to your vet.