Peritonitis is an inflammation or infection of the peritoneum. The peritoneum is a thin tissue lining that covers the inside of the abdominal cavity. It also covers the outside of the intestines and other abdominal organs.
(Chronic Pancreatitis; Acute Pancreatitis)
Pancreatitis is a disease in which the pancreas becomes inflamed. The pancreas is a long, flat, pear-shaped organ located behind the stomach. It makes digestive enzymes and hormones, including insulin. In pancreatitis, the digestive enzymes attack the tissue that produces them.
Pancreatic cancer is the growth of cancer cells in the pancreas. The pancreas is a long, flattened pear-shaped organ in the abdomen. It makes digestive enzymes and hormones including insulin.
Lactose intolerance is the inability to digest significant quantities of lactose. Lactose is a sugar found in milk and other dairy products.
Lactose intolerance is caused by an inadequate amount of the digestive enzyme lactase. Lactase breaks down the sugar lactose into sugars the bloodstream can more easily absorb. When not fully broken down, lactose ferments in the colon (large intestine) and causes symptoms.
(Functional Colitis; IBS; Intestinal Neurosis; Irritable Colon; Laxative Colitis; Mucous Colitis; Nervous Indigestion; Spastic Colon)
Irritable bowel syndrome (IBS) is a chronic disorder of the intestines. IBS does not cause inflammation and does not lead to a more serious condition.