What is ringworm in cats?

Ringworm is a contagious fungal infection of the skin, hair, and nails caused by dermatophyte fungi. In cats it is commonly associated with Microsporum canis, which feeds on keratin and can cause patches of hair loss, scaling, and crusting.

Is ringworm in cats contagious to humans?

Yes. Ringworm is a zoonosis, meaning it can spread between pets and people. Because spores can be present on fur, skin scales, and household surfaces, humans can become infected through contact with an infected cat or contaminated items.

Can healthy adult cats carry ringworm without symptoms?

Yes. Healthy adult cats can be asymptomatic carriers, meaning they may carry spores on their coat without obvious lesions while still potentially spreading the fungus.

Which cats are most at risk of ringworm?

Kittens, elderly cats, and immunocompromised cats are particularly vulnerable. Cats in stressful or crowded settings (such as shelters and catteries) are also at higher risk.

What are the common signs and symptoms of ringworm in cats?

Common signs include circular or irregular patches of hair loss with redness, scales, or crusts (often on the head, face, or ears), dry scaly or dandruff-like skin, an unkempt coat, occasional itching, and in severe cases brittle or deformed claws.

How is ringworm diagnosed in cats?

Diagnosis may include a physical examination, Wood’s lamp evaluation (some Microsporum canis infections fluoresce), microscopic examination of plucked hairs or skin scrapings for spores, and fungal culture, which is the most accurate test but may take up to three weeks.

Can I diagnose ringworm at home?

Home self-diagnosis is risky because other issues (such as allergies or mites) can look similar. It’s best to consult a veterinarian for confirmation before starting treatment.

Does ringworm in cats go away on its own?

Ringworm can sometimes resolve on its own in healthy animals, but treatment is typically recommended because it is highly contagious and can spread to other pets and humans.

What is the best approach to treating ringworm in cats?

Treatment usually involves two parts: treating the cat and decontaminating the environment. Therapy may continue for weeks or months depending on severity, and treatment should not be stopped early.

How do I decontaminate the home environment for ringworm spores?

Remove hair and debris by vacuuming and disposing of the bag promptly; wash bedding and soft items at high temperatures; disinfect hard surfaces with an appropriate disinfectant such as diluted sodium hypochlorite (bleach) or veterinary disinfectants; and limit the infected cat to easy-to-clean areas during treatment.

What treatments might a veterinarian use for ringworm in cats?

Veterinarians may recommend topical antifungal shampoos or lotions (such as products containing miconazole or iodine) applied multiple times per week, clipping fur around lesions when needed, and oral antifungal medications (such as itraconazole or griseofulvin) for widespread infections.

How can I help support my cat during ringworm recovery?

Support includes following the vet’s plan closely, maintaining good nutrition to support immunity, and reducing stress. Some owners also focus on skin-health support (for example, omega-3s or probiotics) and creating a calm environment during treatment.

How can I prevent ringworm in my British Shorthair?

Prevention steps include regular grooming and coat checks, keeping the environment clean, feeding a balanced diet to support immunity, providing enrichment to reduce stress, limiting exposure to unfamiliar or infected animals, and quarantining new pets for 2–3 weeks with a veterinary check before introducing them to resident pets.

How Do BSH Cats Get Ringworm?

Q: How do cats get ringworm?

Cats can get ringworm through direct contact with an infected animal or person, contact with contaminated objects or surfaces (such as grooming tools, bedding, towels, furniture), and exposure in environments where spores persist (including shelters, catteries, pet stores, or soil entering through small skin abrasions).

Q: Why are British Shorthairs more prone to ringworm issues?

British Shorthairs have a plush, dense double coat that can hide early lesions and create a favorable environment for spores. Long-haired variants (British Longhairs) may be even more likely to become silent carriers because spores can be trapped in thicker fur.

Dec 31, 2025

Ringworm is a misleading name for a contagious fungal infection of the skin, hair and nails. It is caused by dermatophyte fungi, most commonly Microsporum canis in cats. These fungi feed on keratin and create circular or irregular patches of hair loss, scaling and crusting. Because the fungi can infect humans, ringworm is a zoonosis a disease that moves between pets and people. Many of the cases seen in veterinary practices involve kittens or immunocompromised pets; however, healthy adult cats can also be carriers with no obvious lesions.

Our website, British Short Hair Cat, is dedicated to the luxurious British Shorthair breed. In this article we explain how ringworm spreads, why British Shorthairs need special care, and what you can do to protect your family and feline companion.

How Do Cats Get Ringworm?

Ringworm fungi produce microscopic spores that contaminate surfaces and fur. Cats become infected in several ways:

Direct Contact with an Infected Animal or Person - Spores are shed on fur and skin scales. Spores can survive for months and quickly spread via grooming or cuddling. Contact doesn’t always result in infection because host factors such as age, immune status and skin integrity determine susceptibility.
Contact with Contaminated Objects or Surfaces - Grooming tools, bedding, towels and furniture can harbour spores for up to a year. Spores persist even after the hair has fallen off; they may survive for 18 months on the environment.
Environmental Exposure - Spores in soil can infect animals through small cuts or abrasions. Stressful, crowded environments such as shelters, catteries or pet stores expose kittens to large numbers of spores and weaken their immune systems.

Young kittens, elderly cats and immunocompromised animals are particularly vulnerable. Long-haired cats often act as asymptomatic carriers because spores become trapped in their dense fur. People with weakened immunity (children, pregnant women or the elderly) may also catch ringworm.

Why British Shorthairs are Prone?

The British Shorthair’s plush double coat is one of the breed’s hallmarks. Unfortunately, thick fur can hide lesions and provide a warm environment for spores. Long-haired variants (British Longhairs) are especially prone to becoming silent carriers. If you live in humid parts of Australia, fungal spores survive longer, making regular grooming and environmental hygiene essential. At Silva Nix cattery, we focus on Golden and Silver British Shorthairs and Longhairs. Our breeding cats come from champion bloodlines, are DNA-tested, and raised in a loving home to ensure robust immune systems and socialisation you can learn more about our philosophy on the About Us page.

Signs and Symptoms of Ringworm in Cats

Clinical signs may vary from subtle to obvious. Common symptoms include:

Circular or Irregular Patches of Hair Loss with redness, scales or crusts. These lesions often appear on the head, face or ears.
Dry, Scaly or Dandruff-like Skin; sometimes the coat looks unkempt.
Itching, although some lesions are non-itchy.
Brittle or Deformed Claws in severe cases.

Because British Shorthairs have dense coats, lesions may be hidden beneath the fur. Some long-haired cats carry the fungus without showing clinical signs. If your British Shorthair suddenly develops patches of hair loss or crusty skin, consult a veterinarian promptly.

Diagnosis: Confirm with your Vet

Several diagnostic tools help confirm ringworm:

Physical Examination - Your vet will look for characteristic lesions but may need further tests.
Wood’s Lamp Fluorescence - Infected hairs fluoresce under ultraviolet light, especially infections caused by Microsporum canis. However, not all species fluoresce, so a negative test doesn’t rule out ringworm.
Microscopic Examination - Plucked hairs or skin scrapings reveal spores attached to hair shafts.
Fungal Culture - The most accurate test; results can take up to three weeks. Your vet may clip a small area of fur or take a sample for laboratory culture to identify the fungal species.

Self-diagnosing ringworm at home is risky because other conditions such as allergies or mites can mimic its appearance. Always seek veterinary advice before starting treatment.

Treating ringworm in British Shorthair Cats

Ringworm often resolves on its own in healthy animals, but treatment is recommended because the disease is highly contagious and can spread to humans. Therapy usually has two components: treat the cat and decontaminate the environment.

1. Decontaminate the Environment

Spores shed from infected hairs can survive for months. Cleaning and disinfection reduce the risk of reinfection:

Remove Hair and Debris - Vacuum carpets and furniture, then dispose of the vacuum bag immediately. Use lint rollers or electrostatic wipes on upholstery and cat trees.
Launder Bedding and Soft Toys - Wash at high temperatures and disinfect the washing machine afterwards.
Disinfect Surfaces - Diluted sodium hypochlorite (bleach) or veterinary disinfectants kill fungal spores. Avoid saturating carpets, as dampness promotes fungal growth.
Restrict your Cat to Easily Cleaned Areas during treatment to minimise contamination.

2. Treat your Cat’s Infection

Treatment length depends on the severity and may continue for weeks or months. Follow your vet’s instructions carefully and do not stop therapy prematurely.

Topical Therapies - Antifungal shampoos or lotions containing miconazole or iodine can be applied 2-3 times per week. If lesions are localised, your vet may clip hair around them.
Systemic (Oral) Medication - For widespread infections, your vet may prescribe oral antifungal drugs such as itraconazole or griseofulvin.
Immune Support - A healthy immune system helps fight off ringworm. Quality nutrition, Omega-3 fatty acids and probiotics support skin health.
Stress Reduction - British Shorthairs are sensitive to changes; minimise stress during recovery. Provide safe hiding spots and use pheromone diffusers if needed.

Preventing Ringworm

Prevention is easier than treatment. Follow these tips to protect your British Shorthair and family:

Groom regularly - Weekly brushing removes loose hair and allows you to check for skin changes. Learn how to trim your cat’s nails to reduce scratching injuries that can harbour spores.
Feed a balanced diet - Quality nutrition supports the immune system. Avoid foods that may upset digestion; our article on raw chicken for British Shorthairs explains the pros and cons of raw diets, and can British Shorthairs drink whole milk? highlights lactose intolerance.
Provide enrichment - Boredom and stress weaken immunity. British Shorthairs thrive on interactive play and mental stimulation. If your cat claws furniture, read our guide on how to stop cats from clawing your couch to provide appropriate scratching surfaces.
Limit exposure to infected animals - Keep your British Shorthair indoors or supervise outdoor time. Avoid contact with stray animals or unfamiliar cats.
Quarantine new pets - If you adopt a new cat, isolate them for 2-3 weeks and have them examined by a vet before introducing them to your resident cat. Our comprehensive guide on where to adopt or buy a British Shorthair cat in Victoria outlines reputable breeders and adoption options.

Our commitment to Healthy Kittens

At British Short Hair Cat, we take fungal health seriously. Our breeding cats undergo comprehensive DNA testing and receive regular veterinary care. Kittens are raised in a clean home environment, vaccinated, microchipped and come with a health guarantee. We also provide starter packs and a free insurance period to support new owners.

If you’re considering adding a British Shorthair to your family, explore our home page for an overview of our cattery. Check out our FAQs to learn about colours, personality and care. When you’re ready, our Pawrants Purchase Guide explains the adoption process, and our contact page has details for reaching us.

We also publish educational articles for British Shorthair owners: read about meloxicam for cats (pain relief options), feeding cheese to British Shorthairs, why cats sleep so much and how long cats can go without food. For those curious about our champion bloodlines, meet “Melon” on our Golden Point British Shorthair page a stunning example of the golden point colour.

Conclusion

Ringworm is a fungal infection, not a worm, and spreads through contact with infected animals or contaminated environments. British Shorthairs are prone due to their dense coats, but with proper hygiene, nutrition and vigilance, ringworm can be prevented and treated effectively. If you suspect your cat has ringworm, consult your vet for a definitive diagnosis and follow their treatment plan. Our team at Silva Nix is committed to producing healthy, well-socialised kittens and providing ongoing support. Together, we can ensure that your British Shorthair enjoys a long, ringworm-free life.

Back to Guide