We often hear from readers about their guinea pigs’ health journeys, and one recent question really stood out. It touches on a lesser-known but important condition in guinea pigs, thyroid disorders, and the challenges piggy parents can face in getting a diagnosis. Here’s what one reader shared, along with helpful expert advice from Dr Agata Witkowska, one of our trusted vet experts.
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Reader Question:
Thyroid Troubles!
“I’d love to see an article about thyroid issues in guinea pigs. Tutu, the head sow in my herd, has an overactive thyroid. It was very difficult (and expensive!) to get this diagnosed, as I struggled to find a vet locally with knowledge of this problem in piggies.
She now takes Thyronorm twice a day, which is helping to an extent. She’s stopped losing weight and acting so manically, but I can’t get any more weight back on her. She weighed 1.2kg but is now just 850g.
I’ve had her since she was a baby, and she’s now nearly five. Of all the 50+ piggies I’ve owned, she’s the only one who bit me regularly for about six months! I think she realised that I wouldn’t give up until she liked me, and she’s now super friendly and chilled.”
Answer from Vet Agata Witkowska:
Thank you for your submission. As you may have seen over the past few issues, we have been asking readers what sorts of medical articles they would like to see. Thyroid illness is certainly an excellent suggestion, so we will add it to the list.
Hyperthyroidism (overactive thyroid function) is well-documented in piggies. Males appear overrepresented, but I have seen just as many females affected in my career so far.
We tend to find that guinea pigs have a very hard time putting weight back on; this is primarily due to their high rate of metabolism and a relatively low-calorie, hay-based diet. One non-prescription supplement that I find quite helpful is a calorie gel called VetCal Pro Gel. It is a multivitamin supplement suitable for most species and easy to administer.
However, as a gel, it is very thick and needs to be given slowly to help the piggy swallow it and reduce the risk of choking. It is appropriate for long-term use and has helped some of my furry potatoes put weight back on as well.
The good news is that, provided piggies are diagnosed early in thyroid illness, their life expectancy is often the same as any of their friends.
I wish Tutu all the best!
If you’re interested in learning more about thyroid problems in guinea pigs – including causes, symptoms, and treatment options – the brilliant Dr Agata Witkowska has written a comprehensive article on thyroid disorders in guinea pigs, featured in Issue 86 of Guinea Pig Magazine. Be sure to check it out for a deeper look into this important disorder.
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Issue 86 is OUT NOW!