Horse ringworm: recognizing and effectively treating dermatophytosis

Ringworm in horses: definition, context and health implications

Ringworm in horses is a skin condition of fungal origin. It is also known as equine dermatophytosis. This disease is not serious, but it remains highly contagious. It spreads quickly in stables, especially when hygiene conditions are inadequate.
In addition, ringworm often affects young, stressed or immunocompromised horses. Prompt management limits the spread and speeds up recovery.

Ringworm in horses: symptoms, causes and contributing factors

Why is ringworm in horses a problem that should not be overlooked?

Even though ringworm in horses often heals spontaneously, it leads to several consequences. It affects the horse's appearance. It can cause secondary infections. It also requires demanding isolation measures.
Moreover, ringworm is zoonotic. It can therefore be transmitted to humans, particularly during care or grooming.

Causes and symptoms of equine dermatophytosis

Ringworm is caused by microscopic fungi called dermatophytes. The most common in horses are Trichophyton and Microsporum.
The symptoms are characteristic:

• circular hairless patches
• thick, greyish crusts
• dry or flaky skin
• variable itching
• lesions frequently on the neck, withers and saddle area

However, some horses remain carriers without showing any visible signs.

Recommended veterinary treatments for ringworm in horses

Treatment for ringworm in horses is based on three approaches.
First, local antifungal treatment. Next, support for the skin and immune system. Finally, thorough disinfection of the environment.

Veterinary solutions help reduce the duration of the disease and limit contagion.

Benefits of veterinary products for ringworm in horses

Imaveral® is an antifungal solution widely used against ringworm in horses.

Benefits:

• direct action on dermatophytes
• effective local application
• rapid reduction of the fungal load
• suitable for adult and young horses

It is used diluted, applied to the affected areas and surrounding areas.

Redonyl Ultra and Megaderm: strengthening the skin barrier

Redonyl Ultra and Megaderm act on weakened skin.

Benefits:

• support for the skin barrier
• reduction of local inflammation
• improved skin elasticity
• helps overall skin comfort

These products are recommended during the recovery phase or for horses with a sensitive dermatological background.

Vetoform Pelage & Peau is a dietary supplement formulated to support skin health and coat quality when the coat is weakened, particularly after an episode of ringworm in horses.

Benefits:

• support for weakened skin barrier
• improved quality of hair regrowth
• helps skin comfort after lesions
• supports skin recovery
• limits persistent skin imbalances

It is used alongside local antifungal treatments, as part of comprehensive ringworm management, on veterinary recommendation.

Frequently Asked Questions & FAQ about ringworm in horses

Is ringworm in horses contagious?

Yes, ringworm in horses is highly contagious. It is transmitted through direct contact between horses, but also via contaminated equipment. Spores survive for a long time in the environment. Thorough disinfection is therefore essential to limit the spread.

How long does ringworm last in horses?

Without treatment, ringworm can last several weeks. With appropriate antifungal treatment and good hygiene, the outcome is often favourable within two to four weeks. The coat gradually regrows after healing.

Can ringworm in horses be transmitted to humans?

Yes, ringworm is a zoonosis. Humans can become infected through contact with an affected horse or contaminated equipment. Wearing gloves and washing hands after handling are strongly recommended.

To find out more:

• Find out more about ringworm in horses with Virbac
• Read our latest horse article on our blog
• Discover all our veterinary horse products – produits-veto.com