Gastrointestinal surgery encompasses a wide range of surgical procedures that are used to treat diseases or injuries of the digestive system. The digestive system includes the esophagus, stomach, small intestine, large intestine, rectum, and anus. Gastrointestinal surgery can involve removing, repairing, or replacing parts of the digestive system. Gastrointestinal surgery can be used to treat a variety of conditions, such as cancer, ulcers, hernias, gallbladder disease, and reflux disease. It can also be used to remove tumors or to correct anatomical problems, such as a blocked or twisted intestine. In some cases, gastrointestinal surgery is used to help with weight loss. Before undergoing gastrointestinal surgery, patients will typically have a physical exam and imaging tests to determine the extent of the condition and to identify any potential risks. The type of surgery and the extent of the procedure will depend on the underlying condition. During the surgery, the surgeon will make an incision in the abdomen and access the digestive system. Specialized tools may be used to repair or remove damaged or diseased tissue. In some cases, the surgeon may use minimally invasive techniques, such as endoscopic surgery, to reduce the risk of complications and recovery time.