Small intestinal bacterial overgrowth (SIBO) occurs when there is excessive accumulation of bacteria in the small intestine. A number of conditions are associated with SIBO, including diabetes, inflammatory bowel disease, irritable bowel syndrome, and a history of surgery of the digestive tract. Common

Cancer that develops in the stomach is also known as gastric cancer. Risk factors include obesity, smoking, and infection with H pylori. Symptoms include abdominal pain, nausea, vomiting, and weight loss. Stomach cancer is diagnosed by obtaining tissue samples during an upper endoscopy (EGD). Depending

Ulcerative colitis involves inflammation of part or all of the large intestine (colon and rectum). Symptoms can include abdominal pain, diarrhea, blood in the stool, fatigue, and weight loss. Ulcerative colitis can be diagnosed with the aid of colonoscopy, imaging studies such as a CT scan, blood tests,