Castration / Gelding operation.
- GSH Equine Veterinary Services
- Mar 25
- 2 min read
Gelding is a surgical process that involves removing a horse's testicles, performed by a skilled veterinarian to ensure the animal's well-being. This delicate operation is pivotal for health management, behaviour modification, and responsible ownership.
The main concern in any scenario is the risk of unwanted coverings, resulting in the pregnancy of young mares, or competition horses unintentional for breeding at that time. Most intact colts are difficult to keep in company with other mares, geldings or stallions, specially as they get older when the male hormones increase.

Pre-Surgical Assessment and Environment Preparation.
Before the surgery, a thorough veterinary examination is crucial to certify the horse's suitability for the procedure. This includes verifying that both testicles have descended. Preparing a recovery area that is serene and sanitary is also crucial, as is understanding the postoperative care required.
A colt can be castrated at any age, as long as both testicles are descended sufficiently.
Colts can be castrated at any time of the year, however they should ideally avoid summer, in order to avoid flies and heat of the summer which can increase the risk of post-operative complications. Ideally should be done in the morning if possible, so the horse can wake up and be monitored through the day, and any required checks or follow-ups can be done during normal hours.
Postoperative Measures for Optimal Healing.
Most horses will be turned out in a small paddock soon after surgery, depending on the size and age of the horse, complete rest is not encouraged unless the Vet recommends initially to help with clotting. It is best if the colt has received its primary course of tetanus vaccinations at least four weeks before the procedure, or it is up to date, but if not, let the vet know and tetanus anti-toxin will be given at the time of surgery.
Addressing Common Post-Surgery Concerns.
A small amount of blood dripping from the wound in the first 24 hours after castration it is normal, but it exceeds a fast trip. please ring your vet. A small amount of swelling after the procedure is also normal, the scrotum may return to the size it was pre-surgery for a few days, but this is normal and will reduce over a few days if exercise levels are maintained. If swelling is considerable or anything is seen hanging from the incision site, you should contact your vet for further advice. Sometimes the incision closes prematurely, and drainage is interrupted.
Recovery and responsible horse ownership.
Colt can remain fertile for up to two months after being gelded, so should not be turned out with mares for at least two months following castration.
If you are considering castrating your colt, please feel free to make an appointment with us. We can discuss the logistics, cost involved in advance. Written consent is needed before hand.
GSH EQUINE VETERINARY SERVICES.
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