Fungal disease is rare in ferrets. The most common fungal disease will be discussed in the following.

Ring Worm
Infects the ferret's skin, but is rare.

Symptoms: Circular lesion on the skin covered with a white crust.

Diagnosis: Based on isolation and identification of the causative agent.

Treatment: Topical or oral medication.

Prevention: Humans who are sick should wear gloves when handling a ferret.