Just had a friend deal with ringworm in cats and honestly it's way more common than I realized. Here's what I learned: despite the name, it's not actually a worm—it's a fungal infection caused by dermatophytes. Pretty misleading naming if you ask me.

So ringworm in cats spreads super easily. We're talking direct contact with infected animals or even contaminated surfaces. The fungal spores can survive on bedding, toys and furniture for up to 20 months, which is honestly kind of wild. If your cat catches it, you're looking at a serious cleaning operation.

What should you watch for? Circular patches of hair loss are the obvious one, but also redness, scaling, itchiness and skin lesions. Main spots to check are the head, face, chest, tail and feet. The tricky part is some cats—especially longhaired breeds—barely show symptoms at all. My friend's cat had super mild signs initially, which is why it took a while to diagnose.

Diagnosis usually involves a black light test or a culture sample sent to the lab. The culture method is more accurate since they can actually grow the spores and identify them under magnification.

Treatment typically combines oral antifungal medication with topical therapy like ointment or shampoo. Most cases clear up in about six weeks, though some take longer. The cost breakdown is roughly $50-90 for initial exam, $50+ for diagnosis, $20-40 for topical meds, and $40-100 for oral medication. Follow-ups might run another $40 each. Total bill usually lands between $100-500 depending on severity.

Here's the thing about prevention: you can't completely prevent ringworm in cats, but keeping your cat indoors during outdoor time helps. Healthy cats with up-to-date vaccines and good nutrition are actually less likely to catch it or have severe infections. There's a ringworm vaccine for cats but vets generally don't recommend it since it's not effective.

During treatment, confinement is key—separate your infected cat from other pets and disinfect everything daily. Use dilute bleach solution on linens and approved disinfectants on hard surfaces. Your cat will still be contagious for up to three weeks even with aggressive treatment.

One more thing: senior cats are at higher risk too, especially if their immune systems are already compromised. So if you've got an older cat, extra vigilance is worth it. Most pet insurance covers ringworm as long as it's not pre-existing, which is helpful to know.