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Recently Neutered Boar Leaking Urine

robputt

Junior Guinea Pig
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Nov 6, 2025
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Devon, UK
Hello,

Unfortunately earlier this year we had a boar in our bonded pair die prematurely at 3.5 years old, we took him to the vets as we realised he was very lethargic and after examination the vet concluded he had a twisted gut and there was very little we could do so he was put to sleep.

Since then we have sought a new boar and proceeded with boar dating, we found a baby boar who took to eachother like a house on fire. He is now 5 months old and we decided to have him neutered to break the boar cycle as we now have out of sync boars and hoped in the future when the elder boar dies we can have more flexibility in the herd formation.

We used our local Guineapig Facebook group to research vets and picked a highly recommended vet in the local area, we had pre-operative check on Monday which concluded the guineapig was in good shape and ready to proceed with the procedure.

On Tuesday morning he was neutered and appeared to be recovering well, however during the afternoon the vet discovered there was more oozing from the wound site than expected and could not satisfactorily determine via ultrasound the root cause, so the guineapig was anesthetized for a second time for a quick look internally to check nothing serious was wrong. He was then stitched back up and after recovery sent home. He is on antibiotics, two different forms of pain killer and pro-kenetic to keep his gut moving. Throughout Tuesday evening and Wednesday we provided hand feeding every 4 hours with critical care as well as the medication provided at the appropriate intervals. He also has free access to food and water in his recovery cage.

This morning we noticed he was leaking urine from his penis, he was rather smelly as he was covered in it so I gave him a bum bath and called out vets when they opened, the vet saw me first thing and had a feel and said everything felt good apart from the fact his bladder was very full, she manually expressed the bladder and a large what looked like a sperm stick emerged from him followed by the contents of his bladder. The vet crunched this up in her fingers and concluded that it was likely bladder sludge and a little bit of calcium deposit and sent us home to see how we got on. He seemed much brighter after this, however after another feeding at midday he went down hill quickly, started leaking again and seemed quite lethargic so I took him back to the vet. The vet then performed an ultrasound and could not find any signs of bladder stones or abscess, however he did have a full bladder. She expressed his bladder again and sent us on our way with a promise to call back tomorrow to discuss further, she also increased his pain killer dose as the theory is he is retaining his urine due to pain / stress as a result of the procedure.

Since we got back we bought his bonded pair to the recovery cage for some time together. Unfortunately he has started leaking again but seems to have a mood boost from his buddy being present. I am about to give him his higher dose of medication and some more hand feed, and I guess unless he clears his bladder himself in the next few hours will be back off to the vet first thing tomorrow morning.

I am feeling a bit deflated as I have tried everything to look after him whilst he has been recovering :-(. The vet did reassure me that day 2 after a procedure is often the worst as this is the stage when muscle starts to repair and the guineapig is likely to feel most sore and sorry for itself and was hopeful that by Saturday we should start seeing improvements. Is there anything else I can do, or anything else I should discuss with the vet to help resolve this?

Thank you in advance for your knowledge, support and guidance.
 
We had a piggy leak urine for a few days after bladder stone removal. It's a different surgery of course, but it stopped by itself after a few days.
Perhaps give your vet a call and see what they say re the leaking urine? 👍
 
Sorry you’re going through this - what a worry it must be. I don’t have any other advice than above, but just wanted to encourage you to hang in there, contact your vet if nothing changes and hope your piggy starts improving soon.
 
Quick update,

Our little piggy is doing much better now, on Friday after the vet upping his painkillers he stopped leaking urine. I was afraid that he wasn't relieving himself at all as I didn't spot any soiled bedding so we headed back to the vet, she had a feel and concluded he had been emptying his bladder and he is been much improved since. Other concern is he has lost almost 5% of his body weight so we kept up with the critical care feeds and today he has started to gain some weight again. Stuff is finally looking up.

Thanks for the words of encouragement on Thursday :-)
 
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