Ringworm in Cats: Causes, Symptoms & Treatment Guide

What is Ringworm in Cats?

Ringworm is not a worm but a highly contagious fungal infection medically known as dermatophytosis. It primarily affects the skin, hair, and sometimes nails of cats. The most common fungus responsible is Microsporum canis, causing around 90% of cases. This fungus can spread between cats, dogs, and humans. Less common strains may originate from wild rodents or contaminated garden soil.

How Do Cats Become Infected?

Cats get infected through direct contact with an infected animal or via exposure to contaminated objects shared among pets, such as bedding, grooming tools, furniture, or carpets. The fungal spores are resilient and can remain infectious up to two years without treatment. Younger cats are often more prone due to weaker immune systems. Maintaining a clean environment and avoiding contact with infected animals is crucial to prevention.

What Are the Signs of Ringworm?

Symptoms can vary; some cats show no visible signs initially, while others develop skin issues. Typical signs include small, circular scaly patches about the size of a 1p coin, with inflamed skin and damaged hair. Commonly affected areas are the head, ears, and paws. These lesions may resemble other skin conditions such as feline acne or allergic dermatitis, so veterinary diagnosis is essential.

How is Ringworm Diagnosed?

A vet diagnosis is necessary to confirm ringworm. The vet may first use a Wood's Lamp, which can make infected hairs fluoresce green under UV light. This test is not foolproof, so samples of hairs may be cultured or examined microscopically for definitive confirmation. Early testing and diagnosis help reduce spread risks.

Treatment for Ringworm in Cats

Treatment depends on the severity and number of cats infected. Oral antifungal medication combined with topical treatments prescribed by a vet usually clears the infection within a couple of months. It's important to follow the vet's instructions closely and use only animal-specific medication. Gloves and protective clothing are advised during application. Pregnant or young cats require special veterinary advice.

Decontamination and Home Care

Separating infected cats in a clean, easy-to-disinfect area helps contain the infection. Thorough cleaning of all surfaces, including ventilation ducts and carpets, is vital. Vacuum bags should be disposed of by burning, and any disinfect-resistant bedding or toys should be discarded. Temporary bedding can include cardboard or newspaper to aid cleaning.

Impact on Breeding and Cat Shows

Cats with skin lesions must not attend shows. Suspected cases at shows result in immediate removal and notification to the Governing Council of the Cat Fancy (GCCF). Breeding must stop during infection outbreaks, and infected cats cannot attend shows or meetings until cleared. Responsible breeders report outbreaks to minimise risks to other cats and humans.

Preventing Ringworm in Cats

Prevention involves avoiding contact with infected animals and contaminated items. New cats and kittens should be tested before introduction. Never share bedding or grooming equipment at shows, and ensure catteries provide exclusive items per cat. Regular cleaning and disinfection of cat-used areas greatly reduce chances of infection.

How Serious is Ringworm?

Though not life-threatening, ringworm is highly contagious. It requires prompt attention to prevent spread among pets and humans. Being aware of ringworm signs and practicing responsible pet care ensures healthy cats and households.