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Dr. John
Dr. John, Texas Veterinarian
Category: Dog Veterinary
Satisfied Customers: 4995
Experience:  Over 14 years of clinical veterinary experience
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Why would a dog start chewing her tail and rear end....

Customer Question

why would a dog start chewing her tail and rear end.... theres been no change in diet ...doesn't have fleas...we're giving her benadryl and also putting either hydra cortizone or neosporin but she is still chewing. and now starting to lick her forearms.
Submitted: 11 months ago.
Category: Dog Veterinary
Expert:  brisadog replied 11 months ago.

Hi, I can help you with your question today.

Expert:  brisadog replied 11 months ago.

Chewing the tail and rear end could be due to anal gland impaction or infection. The pressure in the anal sacs can cause discomfort and dogs often scoot or lick when this happens.

Expert:  brisadog replied 11 months ago.

Aside from that, now tat she is licking her front legs as well, there are a number of different things which might cause this.

Expert:  brisadog replied 11 months ago.

Environmental and food allergies are possibilities. Even without a change in diet, she may have developed a new allergy (this can happen at any age).

Expert:  brisadog replied 11 months ago.

She may also have a contact sensitivity - any new detergents, blankets, etc?

Expert:  brisadog replied 11 months ago.

Fleas are only one parasite which might cause itching. We can also see sarcoptic mange, for example, causing itching.

Expert:  brisadog replied 11 months ago.

Skin infection (pyoderma) can also cause itching. At this point, I recommend having her evaluated by your regular vet. I would start with a physical exam and check her anal glands.

Expert:  brisadog replied 11 months ago.

They can do a skin scraping to look for mites, and a cytology to look for bacterial or fungal infections.

Expert:  brisadog replied 11 months ago.

If everything is normal, I would start a short course of prednisone to relieve the itching, and try a hypoallergenic diet.

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