Gelding

Gelding—also known as castration—is one of the most common procedures performed in horses. It’s an important part of responsible horse management and is recommended for colts not intended for breeding. Gelding can help reduce unwanted stallion behaviour, making horses easier and safer to handle and keep with other horses.

We recommend gelding between 6–12 months of age, as long as both testicles have descended. However, older stallions can still be castrated safely, and we’re happy to discuss the best timing for your horse.

What To Expect

We offer gelding procedures either at your property or at our clinic, performed under general anaesthesia with your horse safely lying down. 

To help ensure a safe and successful procedure, we require:

• A quiet, grassy area where your horse can safely lie down and recover
• A confident handler to assist on the day
• Dry weather and a clean, dust-free environment

Before surgery, your horse will be assessed to ensure they are healthy and fit for anaesthesia. If not already covered, we’ll administer tetanus protection. The surgical area will be thoroughly scrubbed and prepared to maintain sterility. During the procedure, both testicles are surgically removed through small incisions. In most cases, sutures are not required—the wounds are left open to drain and heal naturally. Your horse will receive pain relief and antibiotics to ensure they are comfortable after their procedure and during recovery.

Aftercare

Following surgery, your horse should be monitored closely during recovery. Light daily exercise (such as walking or turnout) is encouraged to minimise swelling and promote healing. We recommend keeping your horse in the cleanest paddock available and checking daily for signs of excessive swelling, bleeding, or discomfort. If you notice anything concerning, please contact us for advice. While gelding is a routine procedure, attentive aftercare is essential for a smooth recovery.

Cryptorchid Surgery (Retained Testicle)

Cryptorchidism is a condition where one or both testicles fail to descend into the scrotum. In these cases, standard gelding is not possible, and surgical removal of the retained testicle(s) is required. At Mt Barker Veterinary Hospital, we offer cryptorchid surgery either via inguinal or abdominal approach, depending on the location of the testicle. This procedure is typically performed under general anaesthesia in a hospital setting, where we can ensure a safe, sterile environment and provide appropriate post-operative care. If your colt or stallion has not developed both testicles by 12–18 months of age, we recommend an examination and discussion with our team to plan the best treatment.

If you have questions or would like to book a gelding procedure, feel free to call and speak with one of our friendly team members. We’re here to help guide you through the process and make it as stress-free as possible for both you and your horse.