Stages of horse training

Regardless of the goal of training, most horses go through a predictable series of steps on their way to being "finished" animals for a given discipline.

Training of foals and younger horses

Most young domesticated horses are handled at birth or within the first few days of life, though some are only handled for the first time when they are weaned from theirmothers, or dams. Advocates of handling foals from birth sometimes use the concept of imprinting to introduce a foal within its first few days and weeks of life to many of the activities they will see throughout their lives. Within a few hours of birth, a foal being imprinted will have a human touch it all over, pick up its feet, and introduce it to human touch and voice.

Others may leave a foal alone for its first few hours or days, arguing that it is more important to allow the foal to bond with its dam. However, even people who do not advocate imprinting often still place value on handling a foal a great deal while it is still nursing and too small to easily overpower a human. By doing so, the foal ideally will learn that humans will not harm it, but also that humans must be respected.

While a foal is far too young to be ridden, it is still able to learn skills it will need later in life. By the end of a foal's first year, it should be halter-broke, meaning that it allows a halter placed upon its head and has been taught to be led by a human at a walk and trot, to stop on command and to stand tied. The young horse needs to be calm for basic grooming, as well as veterinary care such as vaccinations and de-worming. A foal needs regular hoof care and can be taught to stand while having its feet picked up and trimmed by a farrier. Ideally a young horse should learn all the basic skills it will need throughout its life, including: being caught from a field, loaded into a horse trailer, and not to fear flapping or noisy objects. It also can be exposed to the noise and commotion of ordinary human activity, including seeing motor vehicles, hearing radios, and so on. More advanced skills sometimes taught in the first year include learning to accept blankets placed on it, to be trimmed with electric clippers, and to be given a bath with water from a hose. The foal may learn basic voice commands for starting and stopping, and sometimes will learn to square its feet up for showing in in-hand or conformation classes. If these tasks are completed, the young horse will have no fear of things placed on its back, around its belly or in its mouth.

Some people, whether through philosophy or simply due to being pressed for time, do not handle foals significantly while they are still nursing, but wait until the foal is weaned from its dam to begin halter breaking and the other tasks of training a horse in its first year. The argument for gentling and halter-breaking at weaning is that the young horse, in crisis from being separated from its dam, will more readily bond with a human at weaning than at a later point in its life. Sometimes the tasks of basic gentling are not completed within the first year but continue when the horse is a yearling. Yearlings are larger and more unpredictable than weanlings, plus often are easily distracted, in part due to the first signs of sexual maturity. However, they also are still highly impressionable, and though very quick and agile, are not at their full adult strength.

Rarer, but not uncommon even in the modern world, is the practice of leaving young horses completely unhandled until they are old enough to be ridden, usually between the age of two and four, and completing all ground training as well as training for riding at the same time. However, waiting until a horse is full grown to begin training is often far riskier for humans and requires considerably more skill to avoid injury.