Safe, Compassionate Spay & Neuter Care You Can Trust

Trusted Spay & Neuter Services in

O'Fallon, IL

  • 306 E Hwy 50, O'Fallon, IL 62269
  • Monday : 8:30 AM–7 PM
    Tuesday : 8:30 AM–6 PM
    Wednesday : 8:30 AM–6 PM
    Thursday : 8:30 AM–7 PM
    Friday : 8:30 AM–6 PM
    Saturday : 9 AM–5 PM
    Sunday : Closed

Prioritizing Your Pet’s Health and Safety

At Animal Hospital of O'Fallon, we believe proactive care is the key to lifelong wellness. Our spay and neuter procedures are performed with your pet’s comfort and safety as our highest priority. Using advanced monitoring and strict surgical standards, we minimize risk and promote a smooth recovery. These preventive surgeries not only stop unwanted litters but also contribute to better long-term health. You can trust our caring team to treat your pet with the same love and attention we give our own.

Our veterinarians specialize in spaying and neutering Dogs and Cats with exceptional care. As a trusted animal hospital, we help every pet live a healthier, happier life.

A Lifetime of Wellness and Good Behavior

Spaying and neutering help your pet live a longer, healthier, and more content life. These procedures reduce the risk of reproductive cancers, infections, and hormone-related illnesses. They can also prevent challenging behaviors like roaming, spraying, or aggression. At Animal Hospital of O'Fallon, our veterinarians combine skill with compassion to ensure every surgery is gentle, precise, and safe. The result is a happier, calmer pet—and a more peaceful home environment for you.

Skilled Care with a Personal Touch

We know that surgical procedures can feel stressful, which is why we keep pet parents informed and comfortable every step of the way. From your first consultation to post-surgery care, our experienced veterinary team provides complete support. Each pet is closely monitored before, during, and after their procedure for safety and peace of mind. At Animal Hospital of O'Fallon, we’re proud to deliver surgical expertise backed by genuine care and understanding.

Building a Healthier Community, One Pet at a Time

Choosing to spay or neuter your pet is a simple step that creates lasting impact. It prevents unplanned litters, reduces strain on local shelters, and promotes responsible pet ownership. By making this compassionate choice, you’re helping improve animal welfare across our community. Animal Hospital of O'Fallon is proud to partner with pet owners who care deeply about the well-being of both their pets and the world around them.

Get to Know Our Veterinary Team

We know your pet is part of the family and we treat them that way. Our team is here to provide thoughtful, reliable care to help your pet live a long, happy, and healthy life. As a trusted pet hospital, we offer a full range of veterinary services to keep your pets healthy and thriving.

Dr. Brett Ziegler

DVM & Co-Owner

Dr. Craig Thacker

Associate DVM

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Dr. Brett Ziegler

DVM & Co-Owner

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Dr. Craig Thacker

Associate DVM

One Procedure. Lifelong Benefits.

Spaying and neutering can do more than prevent unwanted litters—it supports your pet’s overall health and behavior. Spay & neuter procedures lower the risk of certain cancers and infections, and help reduce behaviors like spraying, howling, or roaming. Choosing to spay & neuter your pet also means a calmer, healthier companion and a more peaceful home—for both of you.

Pet parents rely on our vet clinic for expert spay and neuter services. Our hospital combines compassion with medical skill to ensure the best outcome for every Dog or Cat.

Meet Our Co-Owner & Medical Director

Dr. Brett Ziegler

Dr. Brett Ziegler is dedicated to practicing veterinary medicine with a compassionate and personalized approach, ensuring the health and well-being of each patient while building strong relationships with their human families.

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Dr. Brett Ziegler

DVM & Co-Owner

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Dr. Craig Thacker

Associate DVM

Meet Our Co-Owner & Medical Director

Dr. Brett Ziegler

Dr. Brett Ziegler is dedicated to practicing veterinary medicine with a compassionate and personalized approach, ensuring the health and well-being of each patient while building strong relationships with their human families.

What Our Pet Parents Are Saying

Discover their experience with our compassionate team, ready to meet your pet's needs during office hours.

"The entire staff is wonderful. Making the appointment was easy, their patient record system is great, the doctor was wonderful. The vet tech was super friendly and caring to my dog. The front desk was great. I am glad I picked this clinic!"

- Michael F

Google

"Appreciate Animal Hospital of O’Fallon! Professional and friendly - vet, techs, front desk, you name it. Easy to work with and care for our pets, dog and 2 cats, is exemplary. We are grateful for opportunity to work with them."

- John B

Google

"We have been taking all of our furbabies here for the last 2 years and can’t imagine going anywhere else. The Dr. and the staff are all very friendly and supportive of our needs. Would highly recommend them to anyone!"

- Ana

Google

"Love the doctor! He has been so open about the situation going on with my dog. He seemed to speak from the heart about him as if it was his pet and not just another patient. This whole office is very caring and friendly."

- Anna D

Google

"We are treated with kindness and respect by Dr Z and the staff. Everything is explained to us until we are comfortable with my dogs care, I feel very fortunate that we can go to such a wonderful vet so close to home!"

- Karhy C

Google

What Our Pet Parents Are Saying

Discover their experience with our compassionate team, ready to meet your pet's needs during office hours.

"I cannot express enough gratitude towards the staff today 7/8/2023. We are not clients yet they welcomed us as we had an unresponsive dog, coming from Huger. He would not have made it to the emergency vet. The wonderful staff stabilized him for us to carry on to the west ashley emergency vet. Their kindness will never be forgotten. Thank you my new friends!!"

- Christine H
Google

"It's obvious why this place has 5 star reviews across the board....DR Walter's was absolutely wonderful she was caring and communicating like a vet should....this place isn't the normal experience. I'd say she was a God send. Also I'd like to mention becca the vet tech was awesome and a pleasure to deal with. THANKS FOR EVERYTHING!"

- Daniel S
Google

"My pup, Rosie, and I moved to the area recently and decided to make Cainhoy Vet our home Vet! And wow I am so happy I did. We have been two times now and saw both Dr. Deford and Dr. Walter. They were so kind and friendly to my pup! Even though she was anxious and scared they did everything they could to make her feel at ease. Both times they were really good at explaining the cost of everything upfront and making sure I agreed. The pricing seems reasonable from what I’ve seen! Thank you Dr. Deford and Dr. Walter!!❤️🐾"

- Madi A
Google

"I recently switched to cainhoy vet and I’m very happy with the care my fur baby has received! Specifically Dr. Ingle! Something wasn’t right and she rechecked my Bruno and got him the best care possible. She is extremely knowledgeable, informative, and compassionate. Very happy we found her and her team!"

- Tiffany D
Google

"This was my second visit to this veterinary clinic. My first experience was about two years ago, during an emergency with my dog, and this visit was for my very grumpy cat. Both times—whether for an emergency or a routine wellness check—the staff was prompt, professional, and compassionate. After our dog was referred to a hospital for surgery, they followed up with the hospital and even sent a heartfelt card when he passed, despite having only seen him once. Their care and attention truly stand out."

- Lindsey B
Google

Prompt Care When Your Pet Needs It

Same-Day Care

For injuries or illnesses that simply cannot wait.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Diagnostics + Testing

Done right in our hospital for less wait time and fast results.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Same-Day Care

For injuries or illnesses that simply cannot wait.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Surgery

Scheduled surgeries with a skilled veterinarian on-site

End-of-life care

Gentle, compassionate care during the most difficult time.

Treatment + Hospitalization

We provide immediate care to get your pet on the road to recovery. If overnight care is required, we will work with you to ensure a smooth transfer to a 24-hour facility for continued treatment.

SAME-DAY & NEXT-DAY APPOINTMENTS AVAILABLE!

Spay & Neuter Services in

O'Fallon, IL

Emergency Vet In O'Fallon, IL