Why is my mini schnauzer chewing and losing her fur?

Could be some kind of parasite problem. Also, maybe allergies. The vet would know.

CHEWING….

Chewing is a natural action for all dogs –

it’s just a part of the way they are wired.

However, chewing can quickly become a behavior problem if your dog causes destruction.

The most common reasons dogs

chew are as follows:

Puppy Teething

Boredom / Excess Energy

Anxiety

Curiosity (especially puppies)

Encourage your dog to chew on the right things by providing plenty of chew toys.

Keep personal items away from your dog.

When you are not home, keep your dog crated or confined to an area where less destruction can be caused.

If you catch your dog chewing the wrong thing, quickly correct him with a sharp noise.

Then, replace the item with a chew toy.

One of the most important things you can do:

Make sure your dog gets plenty of exercise!

It could be a couple things.

First read the label on the feed bag and see if there is chicken in it. As weird as it sounds my friends pom lost all of its hair and they linked it back to the food, specifically chicken. She was allergic.

Another option:

Does her skin look or feel dry? If so try washing her in oatmeal shampoo this helps with chewing.

Also:

Is it possible your neighbors could have sprayed any pesticides?

I dont know how your yard is set up but if she somehow is getting close to their grass then she may be having reactions.

Lastly:

The vet says fleas but vets, in my opinion, are not the ones to turn to. But just to be safe check the dog look under the armpits and belly you should see them crawling if they are there.

Try looking into those few things and see if any fit.

good luck