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Bald patches on body.

Species: Dog
Breed: labrador retriever
Age: 2-5 years
I live in Spain. Last Spring my dog had hard white lumps of skin down the sides of her body which came off and the fur came away with it. It left new skin with no fur. These patches were not sore and she did not scratch so were not itchy. Now its December and it has come back again.

The vet tested skin and there was no infestation and blood test was normal.

Do you have any suggestions for treatment and do you know what this is.


Online vet, Dr. Marie

Dr. Marie replied:

This is a tough question to answer without being able to see Freya.

It is interesting that she was not itchy. I'm wondering if what you are seeing is something called a seasonal flank alopecia.

Here are some pictures of dogs with seasonal flank alopecia:

flank alopecia


seasonal flank alopecia


cyclical flank alopecia

This is really common in boxers but can happen in other breeds as well. I have seen it in Bulldogs, Labs and Golden Retrievers.

If this is flank alopecia we really don't know what causes it. Some people will treat it with melatonin but usually it goes away on its own within a few weeks.

The way to diagnose this would be to have your vet take a skin biopsy.

I hope this helps!

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.