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Piggy losing weight - advice please!

alfalfa_sprout

New Born Pup
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Apr 24, 2025
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One of our 2 beautiful boys, Edwin - 4.5 yrs - has been losing weight. His healthy baseline weight was 1kg. 2 weeks ago we felt he was lighter and when we weighed he was 900g. Took him to the vets the next day and noticed at the vets for the first time a very small amount of blood in their travel bag where he had passed urine. He was 860g at the vet. She prescribed rheumocam 2 x per day and arranged an abdominal X-ray ?bladder stones. She took his temp and it was normal. His X-ray was completely normal - no bladder stones or anything else.

Over the first weekend he was tired, eating less and looked sad - not his normal self. I ordered Critical care and started to syringe feed him 40-50 ml per day. I would like to do more but it's extremely difficult to get him to take even this amount. His poos have improved with this as they were tiny and dry. Blood in urine stopped after about 3 days and hasn't returned, he is doing normal wees, no apparent pain or straining. His weight loss has slowed but continues to drop - today 2 weeks since we first noticed a problem he is 807g. He has been otherwise fairly active, going up and down his ramp, interested in what's going on, going up on his back legs, bossing his brother around and he is eating pea flakes and veggies happily (though less than he used to and he's gone off some sweeter treats he used to like like blueberries and carrot.) He barely eats nuggets - maybe a couple of a day, he is still drinking water from bottle and bowl - and this isn't more than usual. He mouths at hay and eats very small amounts but not enough to sustain himself. He really hates the syringe feeding and tries to spit out as much as possible and won't take any at all voluntarily this has made it really hard to get enough into him :(

He isn't coughing or sneezing, breathing is normal, eyes and ears look good, no lumps or swellings, vet said his teeth looked normal and she didn't feel any lymph nodes or lumps. His coat still feels silky and looks healthy. He's living with the same friend he's always had, Albert, so no changes there. They have fleece bedding and he hasn't eaten anything new/out of the ordinary at all prior to getting sick.
Vet said he might have kidney failure - but the blood has completely stopped after about 3 days and was just a small amount - no clots. She said to just syringe feed for a week and if we're going for longer than that then to consider if he needs to be put to sleep or if he completely stops eating anything. It's been about 1.5 weeks since she gave this advice.

I wondered if anyone had any ideas or advice - even practical advice for syringe feeding - i've read the guides on here and watched some youtube videos but the piggies in videos seem quite happy to take the syringe and it hasn't been the case for us. I feel so cruel syringe feeding him as he really hates it but even leaving out 1 feed, his weight drops even more dramatically but in between feeds he seems quite happy and he's enjoying his veg and pea flakes still. It's so sad to see him more skinny - he's always been such a strong and cheeky piggy. I feel really conflicted as I don't want him to suffer needlessly but he also seems to have a good quality of life still - aside from the syringe feeding which is always hard. My previous piggies both died quite suddenly and at pretty old ages (7 and 8) so I've never had to navigate a more prolonged illness with a piggy and am struggling with what's best and how to navigate it - it's quite heartbreaking to think about losing him :(
 
Hi I'm sorry your lovely boy is unwell 😥'm not an expert but have his teeth been checked? Also could you try a different critical care to see if he prefers it then he would hopefully eat more. 🤔
 
The vet checked teeth at the first visit 2 weeks ago and said they look okay but he does seem to be taking longer to chew things, i think I might ask them to look again maybe at the back teeth especially. Have got some new hays today including an oat hay as they love this as a treat to try to entice him but i will look at other critical care mixes as well, thank you! and thanks for reading my v long post!
 
Hi I'm sorry your lovely boy is unwell 😥'm not an expert but have his teeth been checked? Also could you try a different critical care to see if he prefers it then he would hopefully eat more. 🤔
The vet checked teeth at the first visit 2 weeks ago and said they look okay but he does seem to be taking longer to chew things, i think I might ask them to look again maybe at the back teeth especially. Have got some new hays today including an oat hay as they love this as a treat to try to entice him but i will look at other critical care mixes as well, thank you! and thanks for reading my v long post!
 
I'm sorry Edwin is unwell 🙁

Did they x-rays his teeth or did they just look in the mouth? My dentalboy had a molar embedded in gums that became sharp and needed a trim. It was impossible to see this tooth without x-rays, preferably done during sedation. It became a recurring problem after four years old, but when when we knew he had this problem it was pretty easy.
 
I'm sorry Edwin is unwell 🙁

Did they x-rays his teeth or did they just look in the mouth? My dentalboy had a molar embedded in gums that became sharp and needed a trim. It was impossible to see this tooth without x-rays, preferably done during sedation. It became a recurring problem after four years old, but when when we knew he had this problem it was pretty easy.
thanks for your reply, vet just looked in his mouth, unfortunately the blood in urine has started again today :((( we did ask if he could have a UTI but vet said as he's a boy and he didn't have a temperature, she didn't think so
 
Welcome to the forum.
So sorry that you’re dealing with a sick piggy.

I’m not one of the healthiest experts but I do know that a proper dental examination really needs an x-ray to see the back.

If you’re not happy with the vet you’re going to it’s possible to to get a second opinion.
 
Hello and welcome to the forum. I’m sorry that your boy is unwell 😞

I’m not a health expert but male guinea pigs can indeed suffer from UTIs or sterile cystitis

I would be pushing for the vet to check his back teeth by giving him a proper dental examination which may need to be done under light sedation

(((Hugs))) it’s awful seeing them unwell and not knowing what the problem is 😞 x
 
thanks for your reply, vet just looked in his mouth, unfortunately the blood in urine has started again today :((( we did ask if he could have a UTI but vet said as he's a boy and he didn't have a temperature, she didn't think so
Boars can absolutely have a UTI, cysts or bladder-stones. Is your vet a Exotic vet, experienced in Guinea pigs?

If not, I would try to find one. I'm not from UK myself but everyone on this forum praise the Cat&Rabbit-clinic in Northampton. Is that close to you? From what I understand they have this amazing dentist-vet.
UTI or not, it really sounds like somethings going on with his mouth. I have had two dentalboys and the one with the embedded molar just stopped eat. The other one had tongue trapped under teeth, and one of the symptoms was he started to eat slower and slower and preferred soft foods/watery veg. It took ages to eat hay or pellets.

I'm so sorry you're in this position. Its so stressing to care for a sick pig. But remember you're doing a fantastic job ❤️
 
thanks all so much for replies, really appreciate all the advice! he is eating the tasty heads of the hay okay and he is slightly more keen on this different hay i've bought but not having enough. The vet is from a chain practice i'm not sure if she was specifically exotic certified - the one in Northampton is not close unfortunately. But i'm definitely going to get him a second opinion as quite worried he could have an infection that hasn't been treated and will definitely mention that his teeth need to be assessed properly thanks for flagging this! i just want to make sure anything reversible is addressed for him <3 think also this is causing Albert stress too, bless him : (
 
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