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Guinea Pig losing hair.

Species: Other
Breed: Guinea Pig
Age: Less than 3 mon
My guinea pig is 10 weeks and he's lost hair at the rear of his back. It looks a little scaly but not red. He just ate a carrot out of my hand, so I know he's eating. What should I do? I have another 10 week old male with him. He's completely fine.

Thanks for your help.


Online vet, Dr. Marie

Dr. Marie replied:

Sorry to hear that Jake is having some skin problems.

There are a few things that can cause hair loss in guinea pigs. Do we know for sure that Jake is a male? The most common cause of hair loss in piggies is ovarian cysts (which would happen of course only in females). This usually causes a symmetrical hair loss over either side of the back end.

Ringworm, which is a fungal infection is possible as well.

They can also get mites.

Unfortunately for any of these conditions I usually recommend a vet visit. The vet should be able to determine the problem and tell you how to fix it.

One other thought - what kind of bedding are you using? If you are using pine or cedar bedding many guinea pigs are sensitive to this.

I hope he does ok!

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.