Digestive disorder is any health problem that occurs in the digestive tract. Some common problems include Heart burn/GERD, Irritable bowel síndrome and Lactose intolerence. Symptoms may include Bloating, diarrhoea, gas, stomach pain and stomach cramps. In digestion, food and drink are broken down into small parts (called nutrients) that the body can absorb and use as energy and building blocks for cells. The digestive tract is made up of the esophagus (food tube), stomach, large and small intestines, liver, pancreas, and the gallbladder. Digestive diseases include, Gallstones, cholecystitis, and colangitis, Rectal problems, such as anal fissure, hemorrhoids, proctitis, and rectal prolapse, Esophagus problems, such as stricture (narrowing) and achalasia, Liver problems, such as hepatitis B or hepatitis C, cirrhosis, liver failure, and autoimmune and alcoholic hepatitis, Pancreatitis and pancreatic pseudocyst. Tests for digestive problems can include colonoscopy, upper GI endoscopy, capsule endoscopy, endoscopic retrograde cholangiopancreatography (ERCP), and endoscopic ultrasound. Many surgical procedures are performed on the digestive tract. These include procedures done using endoscopy, laparoscopy, and open surgery. Organ transplants can be performed on the liver, pancreas, and small intestine.