What is a gelding horse?
of reading - words
A gelding is a castrated male horse: a vet has removed his testicles, which eventually makes him infertile, though not from the day of the operation. Without most of his testosterone, a gelding is usually calmer and easier to handle than a stallion. That is why most riding school, leisure and competition horses are geldings.
A horse's sex matters as much as its breed or age when you want to buy a horse. Gelding, mare or stallion: each has its own temperament, housing needs and type of rider. To choose the right horse, it helps to know what castration involves and what it changes in everyday life.
Gelding: meaning and origin of the word
The word "gelding" refers to a castrated male equine. It is mostly used for horses, but also for donkeys and mules. A horse that has been castrated is said to have been "gelded", a word that comes from the verb "to geld", itself taken from the Old Norse gelda.
The French word for gelding, "hongre", originally meant "Hungarian" and has been in use since the 12th century. According to the French dictionary Larousse, the practice of castrating horses is said to have come from Hungary. In horse terminology, the gelding is contrasted with the entire horse, meaning an uncastrated male, which is called a stallion when he is kept for breeding. The female is a mare, and a young horse is a foal.
Why geld a horse?
Castration removes the main source of male sex hormones. It is done on horses that are not intended for breeding and are meant to work every day: riding school horses, trail horses, sport horses and driving horses. Freed from breeding-related behavior, the male becomes more willing and focuses better on the work his rider asks of him.
It also makes stable life easier. Once the separation period set by the vet is over, a gelding can usually share a field with other horses, mares included, with no risk of an unwanted pregnancy and, depending on each horse's temperament, fewer fights. Finally, gelding allows breeders to keep only their best males entire, the ones that deserve to pass on their qualities.
The characteristics of a gelding
Beyond being infertile, a gelding stands out mainly for his behavior, which makes him popular with riders of every level.
A calm and steady companion
Every horse has its own personality, but geldings are on the whole easier to handle, train and guide than mares or stallions. Their mood changes little from one day to the next: they go through neither the heat cycles of a mare nor the hormonal surges of a stallion, which makes working with them more predictable.
An old saying among English-speaking riders sums up these differences: "You tell a gelding, you ask a mare, you discuss it with a stallion." It reflects the willingness people credit geldings with, as they tend to be more tolerant and more attentive to what their rider asks. This temperament adds to the main traits of the horse's character shared by all equines.
If you are new to horse riding, a gelding is often the safest choice, because he is more forgiving of beginner mistakes. Experienced riders and many stables also prefer geldings for their tolerant and calm nature.
Pleasant to ride, a gelding is as well suited to hacking out as to regular schooling. He also makes good company on a family trail ride, since his steady nature reassures less confident riders.
A reliable working partner
In horse breeding, in farming and at riding centers, geldings are valued for their strong ability to focus and their calm temperament. At riding clubs, a gelding is a lower-risk mount for a beginner rider, which makes him the go-to horse for daily work. He is easy to train for any equestrian discipline, accepts the saddle more readily and rarely resists.
Gelding, stallion or mare: what are the differences?
Choosing between these three depends mostly on your experience, your facilities and your plans: breeding, leisure or sport.
| Criterion | Gelding | Stallion (entire) | Mare |
|---|---|---|---|
| Breeding | Eventually infertile, not straight after surgery | Kept for breeding | Can carry a foal |
| Temperament | Calm and steady | Dominant and reactive | Varies with her heat cycle |
| Life in a group | Easy, with mares after the separation period | Often kept apart | Easy in a herd |
| Best for | All levels, beginners included | Experienced riders | All levels, depending on her character |
A stallion keeps his full value for horse reproduction, but he needs an experienced rider and suitable facilities. A mare can be more sensitive during her heat cycle. The gelding remains the easiest horse to manage, which explains why geldings dominate riding schools and private yards.
Everything you need to know about gelding a horse
The vet chooses between two approaches: operating on the horse standing, under sedation and local anesthesia, or lying down under general anesthesia, either in the field or at a clinic. Complications are less frequent when the horse is lying down, but general anesthesia carries its own risks. A veterinary guide (in French) details these options for equine castration.
Castration with wooden clamps
This old method is performed on a standing horse. The clamps are pieces of wood tightened firmly over the skin and the spermatic cord. Cut off from their blood supply, the tissues below the clamps eventually fall away. Today it is kept for special cases, for example when the horse is at risk of eventration.
Castration with an emasculator
This is the most common method. After cutting into the skin of the scrotum, the vet places a clamp called an emasculator on the spermatic cord, which crushes it for two to three minutes to limit bleeding. The testicle is then removed, followed by the emasculator, and the wound usually heals without stitches. The technique works on a standing horse as well as on a horse lying down. At a clinic, on an anesthetized horse, the vet can also tie off the cord and stitch the wound.
Aftercare
Recovery is usually straightforward. The wound needs watching and keeping clean, and the treatment prescribed by the vet must be followed: painkillers, often antibiotics, and tetanus protection. Swelling of the scrotum is common for a few days. Walking the horse every day keeps it down and also stops the wound from closing too soon.
Some signs mean you should call the vet straight away: bleeding that will not stop, severe swelling, fever, a foul-smelling discharge or tissue hanging from the wound. Serious complications remain rare, and prompt treatment keeps them from getting worse.
Can a gelding still breed?
Complete castration eventually makes a horse infertile, but he should not be considered sterile straight after the operation: sperm can remain in the reproductive tract during the first weeks. Follow the separation period from mares prescribed by your vet; some practices, such as Agnew Equine, recommend six weeks.
Some geldings still show stallion-like behavior, such as interest in mares or aggression towards other males. Behavior varies from horse to horse: temperament and training, including habits learned before castration, play a large part. If these behaviors remain marked, ask your vet to rule out incomplete castration, for example in a cryptorchid (or rig) with a testicle retained in the abdomen that keeps producing hormones: an examination and a hormone test can establish the diagnosis.
The ideal age to geld a horse
A horse can be gelded at any age, and there is no rule that fits every horse. The timing is decided with the vet, based on whether both testicles have descended into the scrotum, the colt's health and development, and your goals. Many breeders still prefer to geld colts fairly early, before the young male picks up stallion habits.
The later the castration, the more likely those habits are to stick. A male that has produced testosterone for several years develops a thick, crested neck and can become dominant or even aggressive towards the herd, which puts foals and mares at risk. Some owners still prefer to wait, so the horse can build a more impressive physique before he is gelded.

