Oftentimes, the postoperative instructions given to patients are incorrect or lacking. Therefore, the patient did not know the best way to use their new “tool”. Even though the patient may be out of the “golden period” for rapid weight loss, they usually benefit considerably from proper instruction and can therefore avoid revisional bariatric surgery. Weight loss history following the initial surgery tells us if the operation was ever effective or if it “failed the patient” from the very beginning. If postoperative weight loss never occurred or was minimal, then it is likely that there was a technical problem with the operation, and gastric bypass revision may be able to correct the problem at the root. Likewise, complications occurring after the surgery may have led to technical problems that have influenced the durability of the weight loss. Such complications may include intraabdominal infections, ulcerations, band infections, and prolonged vomiting postoperatively. Considering bariatric surgery as a “tool” to be used for long-term weight loss, we must determine if the patient has used their “tool” ineffectively or if the patient’s “tool” does not work. If the “tool” has not been used effectively then it is unlikely that a gastric bypass revision would be beneficial. However, if the “tool” is broken or never worked, then a revision may be beneficial.