Browse disease by medical category

Digestive diseases (gastroenterology)

Alcohol-induced liver diseases

Alcohol-induced liver disease, as the name implies, is caused by excessive consumption of alcohol and is a common, but preventable, disease.

Alcoholic Hepatitis

Hepatitis is the inflammation of the liver, resulting in liver cell damage and destruction. Alcoholic hepatitis is a complex problem and is a precursor to chronic liver disease and cirrhosis.

Autoimmune Hepatitis

Hepatitis is the inflammation of the liver, resulting in liver cell damage and destruction. In autoimmune hepatitis, the body's own immune system destroys liver cells.

Barrett's esophagus

Barrett's esophagus is a condition in which normal cells that line the esophagus turn into cells not usually found in humans called “specialized columnar cells.

Biliary Cirrhosis / Bile Duct Cancer

Biliary cirrhosis is a rare form of liver cirrhosis, caused by disease or defects of the bile ducts.

Celiac disease

Celiac disease is a digestive disease that damages the small intestine because of a sensitivity to gluten, which is found in wheat, rye, barley, and oats. This hereditary disorder interferes with the absorption of nutrients from food.\

Cholangitis

Cholangitis is an inflammation of the bile duct system that is usually related to a bacterial infection. The bile duct system is the drainage system that carries bile from the liver and gallbladder into the area of the small intestine called the duodenum. The infection may occur suddenly or may be chronic.

Cholecystitis

Cholecystitis is an inflammation of the gallbladder wall and nearby abdominal lining. Cholecystitis is usually caused by a gallstone in the cystic duct, the duct that connects the gallbladder to the hepatic duct.

Chronic liver disease / Cirrhosis

Chronic liver disease is marked by the gradual destruction of liver tissue over time. Several liver diseases fall under this category, including cirrhosis of the liver and fibrosis of the liver.

Colic

Colic is a condition in which a young infant who is otherwise well cries or is fussy several hours a day, with no apparent reason. Symptoms include a flushed face, clenched hands and tense abdomen.

Colorectal cancer

Colorectal cancer is malignant cells found in the colon or rectum.

Congenital liver defects

Congenital liver defects are rare liver diseases present at birth such as biliary atresia, when the bile ducts are absent or have developed abnormally, and choledochal cyst, a malformation of the hepatic duct that can obstruct flow of bile in infants.

Crohn's disease

Crohn's disease is an inflammatory bowel disease that is a chronic condition that may recur at various times over a lifetime.

Diverticular disease

In the colon, some people have small pouches that bulge outward through weak spots. Diverticular disease is an inflammation or infection in the pouches, known as diverticula, which are located in the colon.

Drug-induced hepatitis

Hepatitis is the inflammation of the liver, resulting in liver cell damage and destruction. Drug-induced hepatitis is rare and is caused by toxic exposure to certain medications, vitamins, herbal remedies, or food supplements.

Gallstones

Gallstones form when bile stored in the gallbladder hardens into stone-like material.

Gases in the digestive tract

Gas in the digestive tract is created from swallowing air or bythe breakdown of certain foods by the bacteria that are present in the colon.

Gastritis

Gastritis is an inflammation of the stomach lining.

Gastroesophageal reflux disease (GERD)

Gastroesophageal reflux disease (GERD) is a digestive disorder that is caused by gastric acid flowing from the stomach into the esophagus.

Gastroparesis

Gastroparesis is a stomach disorder in which the stomach takes too long in emptying its contents.

Halistosis (bad breath)

Halitosis is an oral health condition characterized by consistently odorous breath.

Helicobacter pylori

H. pylori is a spiral-shaped bacterium found in the stomach, which (along with acid secretion) damages stomach and duodenal tissue, causing inflammation and peptic ulcers.

Hemorrhoids

Hemorrhoids are blood vessels, normally present in and around the anus and lower rectum, that have become swollen due to stretching under pressure.

Hepatitis A

Hepatitis A is a highly contagious and sometimes serious liver disease caused by the hepatitis A virus.

Hepatitis B

Hepatitis B is a blood-borne microorganism transmitted by exposure to the hepatitis B virus through infectious body fluids.

Hepatitis C

Hepatitis C (once called non-A, non-B hepatitis) is a liver disease caused by a recently identified blood-borne virus.

Hiatal hernia

A hiatal hernia occurs when the upper part of the stomach pushes up into the chest through a small opening in the diaphragm, the muscle that separates the stomach from the chest.

Indigestion

Indigestion, also known as dyspepsia, is a painful or burning feeling in the upper abdomen and is usually accompanied by nausea, bloating or gas, a feeling of fullness, and, sometimes, vomiting.

Irritable bowel syndrome (IBS)

Irritable bowel syndrome (IBS) is an intestinal disorder that causes the following: crampy pain, gassiness, bloating, changes in bowel habits.

Lactose intolerance

Lactose intolerance is a condition caused by a lack of an enzyme called lactase, which, in turn, causes the body to be unable to digest lactose, a sugar found in milk products.

Liver tumors

Tumors are abnormal masses of tissue that form when cells begin to reproduce at an increased rate. The liver can grow both non-cancerous (benign) and cancerous (malignant) tumors.

Other liver disorders

An autoimmune disorder is any reaction or attack of a person's immune system against its own organs and tissues.

Pancreatic cancer

Pancreatic cancer is the fourth most common cause of cancer death in men and women in the US. Pancreatic cancer occurs when malignant cells grow out of control.

Pancreatitis

Pancreatitis is the inflammation of the pancreas. The inflammation may be sudden (acute) or ongoing (chronic).

Peritonitis

Peritonitis is an infection caused by an inflammation of the lining of the abdominal cavity, known as the peritoneum.

Pseudocysts of the pancreas

Pseudocysts of the pancreas are abnormal collections of fluid, dead tissue, pancreatic enzymes, and blood that can lead to a painful mass in the pancreas.

Reflux

Gastroesophageal reflux disease (GERD) is a digestive disorder that is caused by gastric acid flowing from the stomach into the esophagus.

Stomach cancer

Stomach cancer, also known as gastric cancer, is cancer that starts in any part of the stomach.

Stomach and Duodenal Ulcers (Peptic Ulcers)

An ulcer is an open sore, or lesion, usually found on the skin or mucous membrane areas of the body.

Ulcerative colitis

Ulcerative colitis is an inflammatory bowel disease in which the inner lining of the large intestine (colon or bowel) and rectum become inflamed.

Viral Hepatitis

Hepatitis is the inflammation of the liver, resulting in liver cell damage and destruction.