
07/09/2025
๐พ Ringworm in Dogs: Fungus Among Us! ๐งผ
Despite its name, ringworm isnโt a worm โ itโs a contagious fungal infection that affects your dogโs skin, fur, and nails.
๐ฆ What Causes It?
Ringworm is usually caused by Microsporum canis, but other fungi can be involved too. It spreads fast through direct contact with infected animals or contaminated objects like bedding, brushes, or even floors.
๐ฉบ What Does It Look Like?
โ๏ธ Circular hair loss (alopecia)
โ๏ธ Scaly, crusty, or inflamed skin
โ๏ธ Dry, brittle nails or nail bed inflammation
โ๏ธ Sometimes itchy, sometimes not!
โ๏ธ May affect face, paws, ears, tail, or nail beds
๐จ Some dogs show no symptoms but can still spread it.
๐งช How Is It Diagnosed?
Your vet may use:
๐ฆ Woodโs lamp โ for glowing hairs
๐ฌ Microscopic exam โ for infected hairs
๐งซ Fungal culture โ the most reliable (but slowest) method
๐งฌ PCR testing โ fast but canโt tell if the fungus is still alive
๐ How Is It Treated?
A mix of topical and oral antifungal treatments:
๐ Medicated shampoos or lime-sulfur dips
๐ Oral antifungals like itraconazole or terbinafine
๐งด Topical creams for localized lesions
๐ Quarantine your dog & disinfect everything (bleach or accelerated hydrogen peroxide recommended)
๐งน Environmental Cleanup is Key:
Vacuum daily. Wash bedding in hot water. Steam clean carpets. Discard what canโt be cleaned.
Spores can survive on surfaces for over a year โ donโt skip this!
๐จโ๐ฉโ๐ง Ringworm is Zoonotic!
That means it can spread to humans. Wash your hands after handling infected pets and follow vet protocols closely.
๐
Recovery takes time โ Treatment may continue for weeks to months, and itโs not officially over until 2 negative cultures confirm your dog is clear.
๐ฃ When in doubt โ always consult your vet.