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Dog Dropping Poop After Oral Surgery: Can Antibiotics or Pain Meds Cause It?

by Rebecca
(Illinois)

Reader Question
My 8 year old Old English Sheepdog had oral surgery last week (Wed,) she had a cracked molar removed. The surgery was a success and I started her on the pain meds and antibiotics the next day (Thu.) Friday she began to defecate in the house, this is quite unusual for her. She did not squat to do so, it was just there when she would get up from lying down, They are nuggets, no diarrhea. I thought it could be the pain meds and so I quit giving them to her as of this Monday. The issue has continued and so as of today (Thu) I did not give her the antibiotics. She had a total of 20 pills in the bottle and so I didn't think it would be bad to not give her the remaining 4. Her last dose was last night and this morning there were 5 or so nuggets. Her vet had never encountered this and I cannot find any info on the web. I may be jumping the gun since we are waiting for the antibiotics to leave her system to see if the issue continues. But I just want to know if you have ever heard of antibiotics doing this to dogs? I am praying that she will return to normal. And she is still going #2 in the yard.

Thank you.


Answer from Our Team

Antibiotics and some pain medicines can upset the gut, and after anesthesia a dog may also be groggy and sleep more deeply than usual. That can occasionally lead to stool dropping when she gets up. Firm nuggets left behind while she still goes normally in the yard can also be a sign of weakness of the anal sphincter, which is worth checking if it continues.

Please call your vet before stopping any prescribed medicine. Stopping antibiotics early can let an infection come back, and your vet may be able to switch to a different drug if one is causing problems. Tell them exactly when the accidents started and what she was taking.

If the accidents carry on after she’s finished her medicines, ask for a recheck that includes a rectal exam and a neurologic exam of her back legs and tail. Go sooner if you notice weakness or wobbliness in her back end, urine dribbling, diarrhea or blood. Meanwhile, take her out often and use washable bedding. See our guide to bowel incontinence in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.

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