Bariatric patients are at risk of diverse complications, such as bowel obstruction, internal hernia, and mesenteric thrombosis, which can result in massive small bowel resection with short bowel syndrome (SBS) as a consequence. In this study a case of an internal hernia after childbirth in a 36-year-old patient with a history of laparoscopic Roux-en-Y gastric bypass surgery is reported. An emergency laparotomy revealed an internal hernia in Petersen’s space with volvulus, causing extensive small bowel infarction and necrosis. SBS is a complicated multifaceted syndrome which requires a multidisciplinary approach, such as medical, nutritional, and pharmaceutical therapies, to optimize fluid and nutrient absorption over long-term monitoring and with revisions of the care plan. To reduce the morbidity and mortality associated with an internal hernia and volvulus, clinicians must be acutely aware of a potential SBS diagnosis and not delay surgical exploration, even if the vital signs, laboratory results, and imaging studies are normal.