At the Animal Hospital of O'Fallon, we can help you ensure that your pet lives a healthy, lengthy, & happy life. Our O'Fallon & sister location, Fairview Heights Animal Clinic in O'Fallon, is here to serve the dogs, cats, rabbits, ferrets, guinea pigs, hamsters, rats, mice, pocket pets, birds, amphibians, & reptiles in St. Clair County, Illinois. Open six days a week, you can always count on our professional & compassionate team to provide exemplary veterinary care including wellness care, sick visits, nutrition & weight management, allergy & dermatology testing, health certificates, microchipping, X-ray, parasite testing & prevention, bloodwork, dental care, surgery including spay & neuter, osteoarthritis injections, & more!