Why is my horse rubbing its tail until the hair is broken?

Read time: 3 minutes

Overview

If your horse is rubbing its tail until the hair is broken, the most common reason is irritation from flies or sweet itch, especially in warmer months. It can also happen with other skin irritation around the tail head, so it’s worth checking the area carefully rather than assuming it’s just one thing.

Things To Check

1. Check whether the rubbing happens more in the early morning, evening or during turnout, when flies are often worse.

2. Look closely at the tail head, dock and under the tail for broken hair, redness, scabs, wet skin or signs of rubbing.

3. Feel the skin gently for heat, swelling or soreness.

4. Check for tiny insects, bite marks or irritation along the mane, crest, belly and face as well as the tail.

5. Notice whether your horse is stamping, swishing, biting at the tail, rolling more or generally seeming restless.

6. Think about any recent changes in turnout, field conditions, rugging, grooming products or washing routine.

7. Check whether the skin is dry and flaky, greasy, or damp from sweating or repeated rubbing.

Common Causes

Sweet itch is a common cause, especially if the tail rubbing comes with itchiness elsewhere on the body and gets worse in fly season.

Fly bites and general summer irritation can also make horses rub their tails, even if the skin looks fairly normal at first.

Skin irritation from mud, sweat, grooming products or rubbing against fences, stable walls or rugs may also be involved.

Less commonly, parasites, skin infection or other skin conditions can contribute, particularly if the skin is sore, scabby or the problem keeps coming back.

What To Do

Start by watching when the rubbing happens and note anything that seems to trigger it. That makes it easier to see whether the problem is mainly linked to flies, turnout or a specific routine.

Keep the tail head and surrounding skin clean and dry, and avoid over-washing or harsh grooming if the skin is already irritated. Gentle grooming can help you spot changes early.

Reduce fly exposure where you can by using sensible field and stable management, such as turnout timing, shelter and keeping the environment as clean as practical. If your horse wears a rug or hood, make sure it fits comfortably and isn’t causing extra rubbing.

If the hair is already broken, try to stop the rubbing becoming a cycle by checking the skin daily and addressing any obvious irritants early.

Products That May Help

For horses that are rubbing, itching or showing signs of summer irritation, this collection may support a practical fly-season routine alongside good management.

Horse Fly Sprays & Summer Care

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