Hoping someone here might be able to help since we seem to have stumped our vet...
TL;DR — Our dog had surgery last week unrelated to his rear end but now is suffering fecal incontinence while sleeping.
This past tuesday, our 8yo male basenji went in for surgery to have 5 (presumably — still waiting for the biopsy) lipomas (fatty build-ups) removed as we'd seen some growth over the last couple of years and felt it was time to take care of them. They were on his: belly, front/high chest, each side, and one by his scapula.
Surgery went fine. No issues during or after with any of his surgery sites. However, since surgery he's been having fecal incontinence issues. His stool is generally normal consistency to slightly soft (but not diarrhea); he's eating and drinking fine. None of his surgical sites are bothering him or infected.
This started Tuesday night (after his surgery) — we woke up and noticed his rear was dirty which led us to discovering a very small smear in his bed. Thursday morning I woke up and sat on the sofa only to find I'd sat in a very small amount of poop (we didn't see it happening). After that we noticed a small amount of discharge around his rear. His rear also seems itchy and uncomfortable (some butt scooting and tenderness when we wipe him off with a baby wipe).
We thought he was out of the woods as he woke up fine yesterday morning. Took him to the vet anyway (already had the appointment, wanted to be sure) who examined him, expressed his anal glands, and couldn't find anything wrong. Thought he was in the clear, but the issues continued later yesterday and today.
Vet is now saying it might be neurological but I find that unlikely given that he has physical symptoms of tenderness and discomfort in the area. He was on Rimadyl and Flagyl till yesterday; again the Dr. said those are unlikely causes. I've also (since) been pointed to the BRAT article on anesthesia in B's which may be the issue, but 6 days out seems like a long time to be suffering the impacts still and we've seen no other signs of neurological issues, no trouble walking, etc.
We're stumped and would like to help our pup recover. Any insights, experiences, etc would be greatly appreciated.