What changes to normal digestion and bowel movements can be expected following roux-en-y hepaticojejunostomy?

The short version: this operation reroutes bile into the small bowel, and the documented bowel problems are mostly late complications, not a predictable daily pattern.

The honest answer is that the records here do not describe routine digestion and bowel habits after Roux-en-Y hepaticojejunostomy. They describe what goes wrong later. The closest match is a case series of eight patients who had bilioenteric diversion (seven of them hepaticojejunostomy) and later developed symptomatic stones in the disconnected remnant bile duct, with stone counts from 1 to 8 per patient and a follow-up window of 6 months to 6 years [1]. That is a complication of the rerouted anatomy, not a description of normal bowel function.

The other two records are about plumbing problems, not digestion. One is a single case of a 3 cm gallstone that formed on a nonabsorbable suture and blocked the terminal ileum four years after hepaticojejunostomy, causing a small bowel obstruction [3]. The other is a technical paper on getting an endoscope into long-limb bypass patients, where 4 of 18 had a prior Roux-en-Y hepaticojejunostomy [2]. Neither tells you what a typical patient's stools look like.

What this retrieval cannot see: any study measuring stool frequency, consistency, fat malabsorption, or bile reflux after this specific operation. That absence is a fact about the search, not about the world.

My call: the evidence here covers late biliary and bowel-obstruction complications, not expected day-to-day digestion, so I cannot give you a typical bowel pattern from these records. Confidence: low, because the retrieval does not address the question asked.