Why does my horse keep scratching its belly in summer? | arlo.® Atlas

Read time: 3 minutes

Overview

If your horse keeps scratching its belly in summer, the most common reason is irritation from flies or other biting insects. Sweet itch is also a common possibility, especially if the rubbing, stamping or skin irritation gets worse in warm weather or after turnout. There can be other causes too, so it’s worth checking the skin and the pattern of the scratching before you assume it’s just flies.

Things To Check

1. Notice when the scratching happens most often, such as after turnout, in the evening, after exercise or when flies are active.

2. Look closely at the belly, girth area and underside for redness, broken skin, scabs, hair loss or areas that look sore.

3. Check whether the horse is also rubbing the mane, tail head, dock or face, as this can suggest a wider itching pattern.

4. See whether there are visible flies, midges or other insects around the horse, especially near water, hedges, muck heaps or still air.

5. Think about any recent changes, such as new grazing, different turnout times, added rugs or changes in grooming routine.

6. Check whether the skin feels warm, swollen or more sensitive than usual when you gently run your hand over it.

7. Make a note of whether the scratching is occasional or constant, and whether it seems to be getting worse over a few days.

Common Causes

Fly irritation is one of the most common reasons for summer belly scratching. A horse may simply be reacting to biting insects landing on thin, sensitive skin.

Sweet itch is another common cause. This is a seasonal allergy-type reaction to insect bites, and it often leads to intense itching, rubbing and skin damage, usually getting worse in warmer months.

Skin sensitivity, sweat, mud or friction from tack, rugs or girths can also make the belly itchy. Sometimes the issue starts with irritation and then becomes worse because the horse keeps rubbing the area.

Less commonly, skin infections, mites or other skin conditions may play a part, especially if the area looks sore, crusty or is not settling with basic summer care.

What To Do

Start by keeping a simple note of when the scratching happens and what seems to make it worse. This can help you spot patterns linked to turnout, weather or insect activity.

Check the skin daily for new rubbing, broken skin or changes in the coat. If there is mud, sweat or debris on the belly, gentle grooming and sensible hygiene can help you keep the area clean and comfortable.

Try to reduce exposure to insects where you can by using practical turnout management, such as avoiding the worst fly times if that's possible and choosing cleaner, less sheltered areas when available.

If the horse wears rugs, tack or boots that might rub the area, make sure they fit properly and aren’t trapping heat or causing friction. A quick tack and rug check is often worth doing when belly itching starts.

If the scratching is persistent, getting worse, or the skin is becoming damaged, it's sensible to speak to your vet for advice.

Products That May Help

Where summer irritation and fly pressure are part of the problem, a focused fly-season routine can be useful alongside good daily management.

Horse Fly Sprays & Summer Care

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