Small intestine inflammation

Enteritis
Classification and external resources
Specialty	gastroenterology
ICD-10	A02-A09, K50-K55
ICD-9-CM	005, 008, 009, 555-558
MedlinePlus	001149
MeSH	D004751
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Enteritis is inflammation of the small intestine. It is most commonly caused by food or drink contaminated with pathogenic microbes, such as serratia, but may have other causes such as NSAIDs, cocaine, radiation therapy as well as autoimmune conditions like Crohn's disease and coeliac disease. Symptoms include abdominal pain, cramping, diarrhoea, dehydration, and fever.

Related diseases of the gastrointestinal system include inflammation of the stomach and large intestine.

Duodenitis, jejunitis and ileitis are subtypes of enteritis which are only localised to a specific part of the small intestine. Inflammation of both the stomach and small intestine is referred to as gastroenteritis.

Signs and symptoms of enteritis are highly variable and vary based on the specific cause and other factors such as individual variance and stage of disease. Symptoms may include abdominal pain, cramping, diarrhoea, dehydration, fever, nausea, vomiting and weight loss.

Crohn's disease – also known as regional enteritis, it can occur along any surface of the gastrointestinal tract. In 40% of cases it is limited to the small intestine.

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