My horse is injured – when should I call a veterinarian?

It happens in the paddock or even in the stall: your horse injures itself and may be bleeding. What should you do? Is it just a small scratch, a bump, or even a huge, gaping wound? Do I need to call the vet, or can I treat it myself, and if so, how? How can I minimize the risk of injury in the future? Kicks, bites, falls, or foreign objects can cause cuts, puncture wounds, abrasions, bruises, contusions, or burns in horses, which may require veterinary treatment depending on their severity. The severity of an injury always depends on its location and the involvement of surrounding structures, such as muscles, tendons, or joints. As with humans, a distinction is made between covered and open injuries in horses. In covered injuries, the horse's skin is undamaged, which is why this type of injury is not always easy to detect. For example, a kick may have caused a bruise that we as owners may only notice when grooming or when the horse is lame. Damage to the skin is referred to as an open injury or wound. This results in bleeding of varying severity, but even here, smaller wounds can be overlooked due to the coat.

INHALT
If any of the following apply, call a veterinarian immediately: Minor wounds or bruises: measures that the pet owner can take Serious injuries: first steps to take until the vet arrives Treatment Wound healing and complications Prevention – is that possible?
If any of the following apply, call a veterinarian immediately:

  • The wound is large and gaping
  • The wound is very deep or cannot be assessed (e.g., stab wound: stab channel not visible)
  • The wound is bleeding heavily
  • There is a foreign object in the wound – do not remove it, as doing so may cause additional injury and severe bleeding!
  • The horse can hardly or no longer stand on the affected leg or is severely lame
  • The horse begins to sweat, breathe faster, sway or tremble (signs of shock)
  • The wound swells quickly

If you are still unsure about the severity of the wound in all other cases, please always call a veterinarian, as they can examine and treat the injury immediately.

Minor wounds or bruises: measures that the pet owner can take

  • For bruises and contusions: cool briefly under running water, then apply cooling gels or pastes, taking care to ensure that these do not come into contact with open wounds
  • Open wounds: Clean with clear water or saline solution
  • Apply a dry bandage

Serious injuries: first steps to take until the vet arrives

  • Stay calm, panic does not help anyone and only causes additional stress for the horse
  • For heavily bleeding wounds: apply a clean pressure bandage
  • For heavily soiled wounds: rinse with clean water only
  • DO NOT use ointments, disinfectants, or sprays before the veterinarian arrives
  • In case of emergency: have the clinic number and means of transport ready

Treatment

Individual treatment by a veterinarian will of course always depend on the location, type, and severity of the injury. However, the first thing to do is to check the animal's tetanus protection. If the horse has not been vaccinated regularly, passive immunization must be administered by a veterinarian, as the pathogens that cause tetanus are present everywhere in the environment and their toxins can easily enter open wounds.

Minor abrasions or cuts can be cleaned and treated with a wound dressing. For larger wounds, it may be necessary for the veterinarian to close the wound with stitches or skin staples. They will ensure that any wound fluid can drain away. The veterinarian will decide on a case-by-case basis whether anti-inflammatory or antibiotic medication is necessary.

If the veterinarian treating the horse in the stable cannot rule out the possibility that deeper structures such as muscles, tendons, or bones have been affected, the horse should be taken to an equine clinic immediately for further examination or any necessary surgery.

Horse leg with injury
Horse with an injury to the fetlock
Wound healing and complications

Horses generally have very good wound healing capabilities, which begin just a few minutes after the injury.

Wound healing can be divided into different phases, which are not strictly separated in time but sometimes occur simultaneously across different stages of wound development:

  • Cleansing or exudation phase: Hemostasis, blood clotting, wound fluid is secreted to flush dirt and pathogens out of the wound, wound scab forms
  • Granulation phase: Formation of new vessels and connective tissue (= replacement tissue) to fill the defect
  • Repair phase: The surface is closed by the formation of new skin cells.

This process can take a very long time for large wounds and require a lot of care from the owner. Since open wounds are always an entry point for bacteria, small, undetected injuries in particular can easily become infected. The bacteria penetrate the subcutaneous tissue via the wound and lead to extensive inflammation of the connective tissue and lymph vessels, known as phlegmon. This occurs particularly frequently on the legs of horses and is better known among riders as "shot". This can cause the horse's leg to swell severely overnight. However, not every horse will develop a "gunshot wound" after a wound, as each horse has a different immune system at the time of injury and is differently sensitive.

In warm summer months, the risk of colonization by fly larvae (maggots) must always be taken into account for large open wounds that are difficult to dress. Therefore, pay meticulous attention to hygiene when caring for wounds and also clean the area around the injury that is contaminated with wound secretions.

The newly formed connective tissue, known as granulation tissue, is crisscrossed by a multitude of small blood vessels and therefore has a grainy surface (granulum = grain). Another complication in wound healing is hypergranulation, the formation of excess replacement tissue on the wound. Because the excess, deep red tissue protrudes above the skin level, it is colloquially referred to as "wild flesh." This disrupts the final phase of wound healing, as the wound can no longer close from the wound edge. This can be caused by local bruising or infections, but also by metabolic disorders such as vitamin deficiency or immune deficiency. Such wounds must always be treated by a veterinarian. Since the granulation tissue contains only blood vessels and no nerves, it can be easily removed by the veterinarian.

Prevention – is that possible?

Of course, you can't wrap your horse in cotton wool if you want it to lead a species-appropriate life. However, certain precautions can at least reduce the risk of injury to a horse.

  • Choose paddock or pasture partners carefully, and possibly separate unfamiliar horses with a fence at the beginning.
  • Warm-up phase: no cold starts in the riding arena or when lunging
  • Use bandages, gaiters, or hoof boots when riding, lunging, jumping, and especially during transport
  • Check stalls, paddocks, and pastures for foreign objects and sharp items.
  • Choose horse-friendly fencing
  • Avoid halters and gaiters in the pasture