They can catch ear mites.
I agree with the above answer, they can also suffer with fleas.
Ear mites are the most common ear problem in ferrets. Luckily they are easy to spot and treat. Chances are your ferret got them from another pet. Normally, ferrets produce a reddish-brown earwax. If the wax is almost black, and there's lots of it, ferret ear mites are most likely the cause. To be absolutely sure, you will need to have it checked out by a vet though. They will examine the ear wax under a microscope where they can actually see the tiny insects crawling around.
Petroleum distillates would be safe for ferrets IF the product is made specifically for ferrets to be used to treat ear mites.
Ferrets are susceptible to a lot of various diseases. The most common is canine distemper. Ferrets are susceptible to feline distemper as well. Ferrets rarely get rabies but precautions should still be taken. There are many other common diseases that ferrets are susceptible to also. Fleas, mites, and physical injuries are not diseases but are quite common.
Ferrets are only bred with other ferrets
The collective term for a group of ferrets is a "a business of ferrets" or "a cast of ferrets".
Panda ferrets the same as other ferrets, just the coloring is different.
Ferrets do not hibernate.
Ferrets do have a ribcage
The plural for ferret is ferrets but a group of ferrets is called a "business" of ferrets.
Wild ferrets - European polecat ferrets live in Europe. Black Footed ferrets live in North America.
ferrets hunt to survie
everyone like ferrets
Yes, ferrets are mammals