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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Vet
Satisfied Customers: 32803
Experience:  University of California at Davis graduate veterinarian with 45 years of experience.
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Hi I have a female Yorkshire terrier who is suffering with

Customer Question

I have a female Yorkshire terrier who is suffering with bald patches especially round her back end and back legs.
What could be the cause of this, she gets this every year, and it clears, then returns.
Any advice would be helpful
Submitted: 3 years ago.
Category: Vet
Expert:  Dr. Michael Salkin replied 3 years ago.
Aloha! You're speaking with Dr. Michael Salkin
Sharon, the seasonality of Molly's alopecia is suspicious of two main disorders. The most likely is a pruritic (itchy) flea saliva allergy because autumn is the season during which this allergy often manifests most severely. If you're seeing Molly bite at those areas, a flea saliva allergy should be considered and a flea spot-on such as Advantage or Advocate applied. In severe cases, a short course of a glucocorticosteroid such as prednisone will do wonders for these dogs.

If Molly, hasn't been excoriating those areas, a seasonal recurring follicular dysplasia should be considered. This usually manifests about the flanks, however. Diagnosis is by biopsy of skin/hair follicles. Finally, alopecia X must always be discussed when a Yorkie gradually loses primary hairs about the neck, tail, caudodorsum (rear/top), perineum, and/or caudal thighs. The cause of this alopecia is unknown but hair regrowth can wax and wane and be quite unpredictable. Diagnosis of this alopecia is by ruling out other causes of endocrine (hormonal) alopecia.

Please respond with further questions or concerns if you wish.