Why is my horse lame with a wound on the leg? | arlo.® Atlas

Read time: 3 minutes

Overview

A wound on the leg can make a horse lame because the area is painful, swollen or starting to get infected. Sometimes the wound itself is only part of the problem, and the lameness is caused by bruising, swelling deeper in the tissues, or the horse reacting to pain when the leg is touched or moved.

It’s worth checking the wound carefully, but you usually can’t tell for certain at home whether it’s simple soreness or something more involved. A calm, close look can help you decide what’s changed and what needs a vet’s input.

Things To Check

1. Check when the lameness started and whether it’s getting better, worse, or staying the same.

2. Look closely for swelling, heat, redness, discharge, bad smell, scabs, or fresh bleeding around the wound.

3. Compare the injured leg with the others for any filling, stiffness, or pain when the horse moves.

4. See whether the horse is reluctant to bear weight, turn tightly, or flex the leg.

5. Check if the wound is near a joint, tendon, or the lower part of the leg where swelling can be more significant.

6. Note whether the horse seems dull, off its feed, or more uncomfortable than you’d expect from a small wound.

7. Think about whether mud, turnout, flies, or a dirty stable may have made the wound harder to keep clean.

Common Causes

The most common reason is simple pain from the wound itself, especially if it’s on a lower leg where movement can keep irritating it.

Swelling around the wound can also make a horse lame. Even a small skin break can lead to enough local inflammation to make the leg sore and stiff.

Infected wounds are another common cause, particularly if there’s discharge, heat, smell, or the area is becoming more swollen rather than settling.

Less commonly, the wound may be affecting a deeper structure such as a tendon sheath, joint, or deeper tissue. That can’t be confirmed by looking alone.

Sometimes the wound and the lameness don’t match perfectly, and there may be another cause such as a strain, bruise, or hoof issue that’s happening at the same time.

What To Do

Keep the horse as calm and still as practical while you assess the leg. If the horse is very sore, avoid unnecessary movement on hard or uneven ground.

Gently clean the area if it’s safe to do so and you can see the wound clearly. Use routine first-aid hygiene and avoid aggressive scrubbing, which can make sore tissue worse.

Keep a simple record of what you see, including any discharge, swelling, heat, and whether the lameness changes after rest.

Try to reduce exposure to mud and dirt while the wound is open, and keep the horse’s environment as clean as you reasonably can.

If the wound is small and the lameness is mild, monitoring closely for any improvement over the next day or so can be helpful. If it’s not improving, don’t wait too long to get advice.

When To Contact A Vet

Contact your vet promptly if the lameness is obvious, worsening, or the horse is unwilling to put weight on the leg. It’s also sensible to call if the wound is near a joint or tendon, there’s marked swelling or discharge, or the horse seems unwell in itself.

A vet should also assess wounds that are deep, gaping, contaminated, or not improving as expected, because leg wounds can involve structures that aren’t obvious from the outside.

Products That May Help

For minor cuts, grazes and general wound care, the right routine supplies can help you keep the area clean and make day-to-day care easier.

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