Digestive diseases

Hemorrhoids, also spelled haemorrhoids, are vascular structures in the anal canal.

Halitosis, colloquially called bad breath, or fetor oris, is a symptom in which a noticeably unpleasant odor is present on the exhaled breath.

An intussusception is a medical condition in which a part of the intestine invaginates (folds into) into another section of intestine, similar to the way the parts of a collapsible telescope retract into one another.

Ileus is a disruption of the normal propulsive ability of the gastrointestinal tract.

Malabsorption is a state arising from abnormality in absorption of food nutrients across the gastrointestinal (GI) tract.

Zollinger–Ellison Syndrome (ZES) is caused by a non–beta islet cell (islet of Langerhans), gastrin-secreting tumor of the pancreas that stimulates the acid-secreting cells of the stomach (parietal cells) to maximal activity, with consequent gastrointestinal mucosal ulceration.

Traveler's diarrhea (TD) is a stomach and intestinal infection.

Microvillus inclusion disease, also known as Davidson's disease, congenital microvillus atrophy and, less specifically, microvillus atrophy (note: microvillus is often misspelled as microvillous), is a rare genetic disorder of the small intestine that is inherited in an autosomal recessive pattern.

A sentinel loop is a sign seen on a radiograph that indicates localized ileus from nearby inflammation.

Alcohol flush reaction is a condition in which an individual develops flushes or blotches associated with erythema on the face, neck, shoulders, and in some cases, the entire body after consuming alcoholic beverages.

Whipple's disease is a rare, systemic infectious disease caused by the bacterium Tropheryma whipplei.

In medicine, the median arcuate ligament syndrome (MALS, also known as celiac artery compression syndrome, celiac axis syndrome, celiac trunk compression syndrome or Dunbar syndrome) is a condition characterized by abdominal pain attributed to compression of the celiac artery and possibly the celiac ganglia by the median arcuate ligament.

Common bile duct stone, also known as choledocholithiasis, is the presence of gallstones in the common bile duct (thus choledocho- + lithiasis).

Alvarez's syndrome is a medical disorder in which the abdomen becomes bloated without any obvious reason, such as intestinal gas.

Reynolds syndrome is a rare secondary laminopathy, consisting of the combination of primary biliary cirrhosis and progressive systemic sclerosis.

Gastrointestinal diseases refer to diseases involving the gastrointestinal tract, namely the esophagus, stomach, small intestine, large intestine and rectum, and the accessory organs of digestion, the liver, gallbladder, and pancreas.

Heyde's syndrome is a syndrome of gastrointestinal bleeding from angiodysplasia in the presence of aortic stenosis.

A rectus sheath hematoma is an accumulation of blood in the sheath of the rectus abdominis muscle.