Why Is My Horse Girthy? Common Causes Explained

If your horse reacts when being girthed, such as pinning their ears, swishing their tail, biting, or stepping away, this behaviour is often described as being “girthy.” While some horses may show mild sensitivity, persistent or worsening girthiness is usually a sign of discomfort or pain, rather than bad behaviour.

What Does “Girthy” Mean?

A girthy horse may show signs such as:

• Ears pinned back when the girth is tightened

• Biting or nipping during tacking up

• Tensing or stepping away

• Kicking at the girth

• Changes in attitude or reluctance to be ridden

These behaviours often develop gradually and may become more noticeable over time.

Common Causes of Girthiness in Horses

1. Equine Gastric Ulcers

One of the most common causes of girthiness is Equine Gastric Ulcer Syndrome (EGUS).

Horses with ulcers may:

• Be sensitive around the girth and elbow area

• Show changes in temperament

• Nip or bite during tacking up

• Lose weight or appetite

• Perform inconsistently under saddle

Pressure from the girth can exacerbate discomfort in the stomach area, making these signs more obvious.

2. Back or Saddle-Related Pain

Ill-fitting saddles, muscle soreness, or spinal pain can cause discomfort when pressure is applied.

Signs may include:

• Reacting when the saddle or girth is placed

• Resistance to mounting

• Poor performance or stiffness

• Sensitivity along the back

A saddle fit assessment and veterinary examination may be required.

3. Skin Conditions or Girth Sores

Localised pain around the girth area can make horses defensive.

Common causes include:

• Girth galls or rubs

• Skin infections

• Poorly fitting or dirty tack

Even mild skin irritation can cause significant discomfort.

4. Musculoskeletal Pain

Pain elsewhere in the body can also contribute to girthy behaviour.

This may include:

• Rib or chest muscle pain

• Shoulder discomfort

• Underlying lameness

Horses may associate tacking up with anticipated pain during work.

5. Learned Behaviour

In some cases, girthy behaviour may begin due to pain and continue even after the original issue has resolved.

However, this should always be considered after physical causes have been ruled out, not before.

When Should You Call the Vet?

You should seek veterinary advice if:

• The behaviour is new or worsening

• Your horse was previously happy to be girthed

• Girthiness is accompanied by weight loss, behavioural changes, or poor performance

• There is pain, swelling, or skin lesions

• You are unsure of the cause

Early investigation can prevent discomfort from becoming a long-term issue.

How Can a Vet Help?

Depending on the findings, your vet may recommend:

• A clinical examination

• Gastroscopy to assess for gastric ulcers

• Saddle fit and back evaluation

• Imaging such as ultrasound or X-rays

• Pain relief or targeted treatment

Identifying the underlying cause allows for effective, long-term management.

In Summary

Girthiness is often a sign of discomfort, not bad behaviour. Conditions such as gastric ulcers, back pain, skin irritation, or musculoskeletal issues are common underlying causes.

If your horse has become girthy or you are concerned about changes in behaviour, speaking to your vet early can help identify the cause and keep your horse comfortable and happy.