The primary difference between mini gastric bypass surgery and a full gastric bypass is that the mini version of the surgery is performed in a modified manner that involves less intestinal rerouting and a shorter overall surgery time. After surgery, you should avoid nonsteroidal anti-inflammatory drugs (NSAIDs), such as aspirin, ibuprofen (Motrin, Advil) and naproxen (Aleve). NSAIDs increase the risk of stomach ulcers. Patients who had gastric bypass surgery should avoid these medications indefinitely. Bread, Rice, and Pasta - Because of the starchy nature of bread, rice, and pasta, after your surgery, they can form a paste in your throat that is hard to swallow without liquid. In some cases, they can block the stoma, the hole to the pouch that is your new stomach. Longer term risks and complications of gastric bypass can include: Bowel obstruction. Dumping syndrome, causing diarrhea, nausea or vomiting It is normal to see weight gain after bariatric surgery because patients still live in an obesogenic environment, and the individual's or surgery's ability to control all factors is limited. Body fat is also subject to metabolic pressures to regain lost weight