Select a specific condition below to view its details.
Campylobacteriosis is an infection caused by bacteria you can get from contaminated food and water. It causes diarrhea. You might also hear it called campylobacter, campylobacter infection, or campylobacteriosis gastroenteritis.
- Celiac disease
Celiac disease, sometimes called celiac sprue or gluten-sensitive enteropathy, is an immune reaction to eating gluten, a protein found in wheat, barley and rye.
- Crohn's disease
Crohn's disease facts
Crohn's disease is a chronic inflammatory disease of the intestines.
The cause of Crohn's disease is unknown.
Crohn's disease can cause ulcers in the small intestine, colon, or both.
Abdominal pain, diarrhea, vomiting, fever, and weight loss are symptoms of Crohn's disease.
Crohn's disease of the small intestine may cause obstruction of the intestine.
Crohn' Read More
Cryptosporidiosis is a diarrheal disease caused by microscopic parasites, Cryptosporidium, that can live in the intestine of humans and animals and is passed in the stool of an infected person or animal. Both the disease and the parasite are commonly known as "Crypto." The parasite is protected by an outer shell that allows it to survive outside the body for long periods of time and makes it very resistant to chlorine-based disinfectants. Duri Read More
Gastritis is inflammation of the lining of the stomach. Unfortunately, the term "gastritis" has been misused to include many different upper abdominal problems, but true gastritis refers to the stomach lining (gastric mucosa) that is inflamed. All or part of the gastric mucosa may be involved. Gastritis may be classified as acute or chronic. Acute gastritis may be characterized as erosive (damaged areas where mucosal cells are disrupted or mis Read More
- Gastroenteritis (stomach flu)
Definition of gastroenteritis
Gastroenteritis (often referred to as the "stomach flu," however, it is not related to the influenza virus. Gastroenteritis is a nonspecific term for various inflammatory problems in the gastrointestinal tract with the most common symptoms and signs being diarrhea, nausea, vomiting, and abdominal pains.
As previously mentioned, although it is not caused by influenza viruses, gastroenteritis i Read More
- Hiatal hernia
The esophagus connects the mouth and throat to the stomach. It passes through the chest cavity and enters the abdominal cavity through a hole in the diaphragm called the esophageal hiatus. The term hiatal hernia describes a condition where a part of the stomach that normally is located in the abdominal cavity pushes or protrudes through the esophageal hiatus to rest within the chest cavity. Read More
- Indigestion (dyspepsia, upset stomach)
Dyspepsia (indigestion) facts
Dyspepsia is a functional disease in which the gastrointestinal organs, primarily the stomach and first part of the small intestine, function abnormally. It is a chronic disease in which the symptoms fluctuate in frequency and intensity.
Theories of the cause of dyspepsia include abnormal input from intestinal sensory nerves, abnormal processing of input from the sensory nerves, and abnorm Read More
- Listeriosis (listeria monocytogenes infection)
Listeriosis is an infection caused by a gram-positive motile bacterium named Listeria monocytogenes. The infection produces fever, muscle aches, and, in many people, diarrhea. Severe infections can cause headaches, meningitis, convulsions, and death. Most healthy people exposed to the bacteria have minor or no symptoms, but a few people, especially the elderly, pregnant females and their fetus, newborns, and anyone with a compromised immune sy Read More
- Norovirus infection
There's no specific treatment for norovirus infection. Recovery generally depends on the health of your immune system. In most people, the illness usually resolves within a few days.
- Travelers' diarrhea
The most common signs and symptoms of traveler's diarrhea are:
Abrupt onset of passage of three or more looser watery stools a day
An urgent need to defecate
Sometimes, people experience moderate to severe dehydration, persistent vomiting, a high fever, bloody stools, or severe pain in the abdomen or rectum. If you or your ch Read More
- Trichinosis (trichinellosis)
After you eat roundworm (trichinella) larvae, they grow into adult worms in your small intestine. The adults then produce larvae that move through the bloodstream to muscle tissues, shown here.
Signs and symptoms of trichinosis infection and how severe the infection is can vary. This depends on the number of larvae eaten in the infected meat.
Possibly no signs or symptoms
Mild cases of trichinosis — those with onl Read More