How do gastric sleeve and gastric bypass differ, and which is suitable?
A sleeve reduces stomach size by removing part of it. A traditional gastric bypass creates a small stomach pouch and reroutes food through the intestine. Both can help obesity and related conditions, but suitability depends on health, reflux, risks and follow-up.
Details
Reflux and diabetes influence selection
A sleeve can cause or worsen reflux, whereas bypass may help selected people with reflux. Diabetes can improve after either procedure, but improvement or remission does not guarantee permanent cure or stopping all medicines.
Risks and commitments differ
Both require long-term supplements and follow-up. Bypass usually affects nutrient absorption more and may involve dumping symptoms or ulcers. Sleeve surgery permanently removes stomach tissue that cannot simply be put back.
Questions for the team
Discuss why a procedure is recommended, previous operations, medicines, pregnancy plans and complication management. Ask for a comparison of benefits, risks and suitable nonsurgical alternatives rather than choosing solely on the fastest promised weight loss.
Related reading: Does sleeve gastrectomy keep weight off for life?.