Dermatophytosis (Ringworm)
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About this condition
A fungal infection of the skin, hair, and nails caused by dermatophytes, characterized by circular hair loss and scaling. This is a zoonotic disease that can spread to humans and other animals; wash hands thoroughly after contact with an infected cat.
Common symptoms
- Circular areas of hair loss (commonly on head, ears, and limbs)
- Scaling or crusty skin
- Mild or absent itching
- Spreading lesions or multiple affected areas
Common causes
- Dermatophyte fungi such as Microsporum canis
- Contact with infected cats or other animals
- Indirect infection from contaminated environment, bedding, or brushes
- Increased risk in kittens or immunocompromised cats
Prevention (husbandry & daily care)
Quarantine and inspect new cats' skin, regularly clean and ventilate the environment, and disinfect or dispose of brushes and bedding used by infected cats. Always wash hands after handling cats to prevent human infection.
Related species guide
→ Browse the species guide for this animalWhen to see a vet
Consider a vet within a few daysWhat treatment does a vet provide?
Veterinarians confirm infection with Wood's lamp examination, microscopy of hairs, and fungal culture, then prescribe antifungal medication (topical and/or oral). Follow-up appointments are recommended to monitor treatment progress.
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