Dog ate chocolate?

 ask a vet

Guinea pig with mammary tumor.

Species: Other
Breed: Guinea pig
Age: 5-8 years
what does a large open lump on a guinea pigs tit mean? the tit has gone!




Online vet, Dr. Marie

Dr. Marie replied:

Sorry to hear that Muffin is having these problems.

Unfortunately mammary gland tumors (cancer) are quite common in older guinea pigs.

A recent study showed that 50% of mammary cancers in guinea pigs are benign and 50% are malignant.

However, if you are seeing that the area has ruptured then I am concerned that this may be a malignant cancer.

An abscess is a possibility, but not as likely.

It's a good idea to have your vet take a look. They may be able to do surgery to remove the lump. Or, they might be able to prescribe some antibiotics which could help for a little while.

Dr. Marie.

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


Do you have a pet website? Interested in learning more about SEO for Wix?

Check out our dog age calculator and cat age calculator.

Want to receive pet coupons, vet advice and info on new pet products in your inbox?

* indicates required

We'll only send you great stuff, never spam. Unsubscribe any time.

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.

Search for similar questions:

ask a vet

Popular questions...

Abdominal mass in a cat. My husband and I put down our Ivy today. It was rather sudden and unexpected and... (50455 views)

Breeding big and small dogs. My little girl--weight 11 lbs-- got possibly impregnated (accicdentally--he broke... (79358 views)

Why did dog die? My dog, Runway, died suddenly early sunday morning, at about 1:00am. I am wondering... (16187 views)

Vomiting and diarrhea in puppy. Lady is almost 5 months now, she's a typical Aussie puppy. She lives with me, my... (9598 views)

Tracheal collapse. I was wondering if a mild case of collapse trachea in a 5 month old puppy will... (8566 views)

Does my dog have cushing's? Hi Dr. Marie, I took my almost 10 y/o lab to the vet because she has been waking... (7807 views)

Vaginal bleeding in cat. my cat is having vaginal bleeding since early morning, she cannot keep up with... (24425 views)

Abscess? Hi Would you please be able to answer my question.. Wednesday Night I Heard two... (8522 views)

Dog losing weight. my king charles is losing weight, ive tried al different kinds of wet and dry food... (10108 views)

Pooping in the house. Hi Ipurchased a dog from a pet rescue organisation in Sydney just over three months... (18223 views)

See all questions...

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.