Your Email:
Get the latest news, tips and
free advice every month
What was the reason for your most recent pet store “impulse” purchase?
I liked the special display
I watched a demonstration
Someone in store recommended it
The item was on sale
The item had a promotion I liked
It was a new item I wanted to try
I liked the way it looked
I didn’t make an impulse purchase



Printer Friendly
Black Patches, Lost Hair

Young dog starts losing hair, and veterinarians can't seem to diagnose.

Jon Geller, DVM

Page 1 of 2

Q. My question has to do with my mixed breed. Bella is an 11-month-old, spayed, 33-pound Beagle-German Shepherd Dog mix. Her coat is tan, cream and light black. Two weeks after getting her from the SPCA, we noticed that she had several black patches of skin under her coat. Her skin is pinkish white normally, so it is quite noticable. Her fur started to fall out in these patches. The areas affected are her head, under her front armpit, on her front paw, her rump, and her crotch area.
 
I have taken her to three vets, and nobody can tell me what the problem is. One tested for ring worm and told me it looked like blackheads. I had to laugh. I know that dogs can get blackheads, but these blackish areas almost have a blueish tone to them with a reddish-pink ring and crusty areas. He ended up prescribing a peroxide shampoo which did nothing.

It's clearly something other than your typical battle with mites or fleas, both of which have been ruled out with a skin scraping. 

The other vet told me that a biopsy would be the best route, but wanted to charge $400!  Since we hadn't done any bloodwork, I opted out of spending that much.

Not one of these vets took any blood samples. I ended up with yet another shampoo: Malaseb.

It's been a month since we first noticed these patches of skin, and I've noticed that her appetite has increased as well. She is bottomless and eats her three-fourths of a cup of dry food in less than two minutes (which might be normal). Sometimes she cannot keep her food down.

Does it seem like these symptoms tie into each other? Or is this anything you've ever heard of?

Since I feel like I've been taken for a ride by these other vets, I'd like to know the best route to take. I hope that you can offer some advice.

Dr. Jon GellerA. I am sorry you have had such a difficult time getting your dog's skin condition diagnosed. I have some telepathic powers, but doing cyber diagnosis is not one of them.

However, I do have a few suggestions. One skin disease which is tied to increased appetite is hypothyroidism, where the thyroid gland becomes inactive, and metabolism slows down. As part of this, the immune system is suppressed, and affected dogs are very prone to skin conditions. A blood test to measure thyroid hormone is a simple way to rule this out, and it is not costly.

Page 1 | 2

Posted: Mon Jan 31 00:00:00 PST 2005

Printer Friendly
 Give us your opinion on
Black Patches, Lost Hair
Submit a Comment
Reader Comments
My dog also suffered from black patches under the skin and at one point had lost almost all of his beautiful Sammy hair. I took him to every specialist in the area and had him tested for every possible disease. The end result was that his oil gland had burnt out. Please have your dog tested for this problem as well as it is not a common disease.
Ellen, Coal City, IL
Posted: 2/19/2008 8:31:35 AM
View Current Comments

Name:
Address:
City:
State:
Zip Code:
Email:

House-training Your Dog
Buy Now
Healthy Puppy
Buy Now
Dog Bible
Buy Now
 


Hi my name's BUBBA#45646-THANK YOU EVERYONE

Visit the Photo Gallery to
cast your vote!