Ringworm in pets: symptoms, causes and how to manage it naturally

Ringworm in pets is a common fungal skin infection that affects both dogs and cats. Despite the name, it has nothing to do with worms, as ringworm is caused by fungi that live on the skin, hair and nails. Because it spreads easily between animals and can also pass to humans, getting on top of it early makes a big difference.

Key highlights: Ringworm in pets

Key facts about ringworm in dogs and cats include:

• Ringworm is a fungal infection (dermatophytosis), not a parasite or worm.
• It affects dog, cats and other small pets, and spreads easily through direct contact and contaminated environments.
• Cats, especially kittens and long-haired breeds, are common carriers (often without obvious symptoms).
• Typical signs include hair loss, scaly skin and broken hairs, often in circular patches.
• Ringworm can spread to humans, so early management matters.
• Spores of the ringworm fungi can survive in the environment for months, increasing the risk of reinfection.
• Managing ringworm usually requires both skin support and environmental control.

Ringworm in pets: Why it can be hard to manage

At first glance, ringworm can look like a fairly minor issue with just a small patch of hair loss. But in practice, it can be surprisingly persistent.

One of the biggest challenges is that not all animals show clear signs, particularly cats. This means ringworm can move quietly through a household before anyone realises what they’re dealing with.

On top of that, fungal spores don’t just disappear. They can linger in bedding, carpets and grooming gear, which makes reinfection frustratingly common if the environment isn’t managed alongside the animal.

What causes ringworm in pets?

Ringworm is caused by fungi known as dermatophytes, which feed on keratin - the protein found in skin, hair and nails.

It spreads through:

• Direct contact with an infected animal
• Contact with contaminated items like bedding, brushes or furniture
• Environmental exposure (including soil in some cases)

Animals with weaker immune systems, including young, older or stressed pets, tend to be more susceptible.

What does ringworm look like?

Ringworm doesn’t always follow the textbook description, but there are some common signs to look for:

• Circular or patchy hair loss
• Scaly, crusty or flaky skin
• Broken or brittle hairs
• Mild redness or inflammation
• Occasional itching (though not always)

It often shows up on the face, ears, paws, tail and legs.

One thing to keep in mind is that lesions aren’t always perfectly round, which is why ringworm is often mistaken for other skin issues early on.

Why does ringworm keep coming back?

If ringworm seems to clear up and then return, there’s usually a reason.

Environmental contamination: Spores can survive for long periods, meaning pets can be re-exposed even after symptoms improve.

Incomplete resolution: Skin can look better on the surface while fungal activity is still present underneath, allowing the infection to flare up again.

This is why it’s important to think beyond just what you can see, and manage both the animal and its environment.

Ringworm in cats vs dogs: Is there a difference?

How to manage ringworm naturally

Managing ringworm is rarely about a single quick fix. It’s more about taking a consistent, practical approach across a few areas.

Step 1: Support the skin and immune system

Healthy skin is naturally more resilient. Supporting the body’s own defences can help reduce both the severity and duration of symptoms.

Our Ringworm Plus – Pets remedy is designed to support a natural immune response to fungal skin conditions. Because it’s given orally, it’s easy to use — particularly for pets that don’t tolerate topical treatments well.

Customer Suzanne McG used our Ringworm Plus Pets on her dog Basil, and she told us “Amazing results! Can’t believe it worked!! Our Aussie Terrier had a persistent case of ringworm. For 9 months we were treating it under the guidance of our local vet, but new lesions continued to appear. We decided we would have to live with it, until we stumbled upon your product. In the end we did two round of treatment, but as you can see from the photos it consistently got better. By the end of week 3 (round 1) there were no new lesions and the existing ones were easier to keep clean, by the end of the first round of treatment there was only a very small amount of active ringworm. By week two (round 2), it was completely gone and the hair had started to grow back. So grateful. Thank you! Highly recommend!!”

Step 2: Reduce environmental reinfection

This is the step that often gets missed. Spores can hang around in the environment, so regular cleaning is essential:

• Wash bedding frequently
• Clean grooming tools
• Vacuum carpets and soft furnishings
• Keep living areas dry and well ventilated

Step 3: Monitor other animals

If you’ve got more than one pet, it’s worth keeping a close eye on them — especially cats. They can carry ringworm without obvious symptoms and unintentionally pass it on.

Natural support options at a glance

So how do oral remedies work?

Our remedies support the body’s natural immune response, rather than targeting symptoms directly. The active ingredients only need to make contact with a mucous membrane such as the tongue, gums, or lips for a dose to be delivered, which makes them easy to use even for the most difficult-to-dose pets.

Remedies can be given straight into the mouth, added to food, or even into the water bowl, making it a low-stress option for both pets and owners, particularly when ongoing support is needed.

Final thoughts

Ringworm in pets is common, but it’s rarely as simple as it first looks. Because it spreads easily and can persist in the environment, taking a steady, consistent approach is what tends to get the best results.

Focusing on skin health, immune support and environmental management together can help reduce the chances of it coming back and make the whole process a lot less frustrating.

While this blog focuses on dogs and cats, it’s worth noting that ringworm isn’t limited to pets. We also see it across horses and livestock (especially pigs), which is why we’ve developed targeted remedies across our range to support different species in the same way.