This document discusses gastroesophageal reflux disease (GERD), including its pathophysiology, symptoms, diagnosis, and treatment options. It provides details on the medical and surgical management of GERD, highlighting the importance of a thorough pre-operative workup including pH testing, manometry, and other diagnostic evaluations to determine the appropriate treatment and ensure good postoperative outcomes. Both medical therapies like proton pump inhibitors and surgical procedures like Nissen fundoplication are discussed as options for treating GERD, with surgery reserved for cases that are refractory to medical management or that involve complications.