Irritable bowel syndrome

Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder by a group of symptoms that usually include abdominal pain, abdominal bloating and changes in bowel movements.[1] These symptoms may happen over a long time, sometimes for years.[2] IBS can affect quality of life and may impact daily life activities.[7] Disorders such as anxiety, major depression, and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are common among people with IBS.[1][8][note 1][9]

Irritable bowel syndrome
Other namesSpastic colon, nervous colon, mucous colitis, spastic bowel[1]
Irritable bowel syndrome.jpg
3D depiction of the pain of IBS
SymptomsDiarrhea, constipation, abdominal pain[1]
Usual onsetBefore 45 years old[1]
DurationLong term[2]
CausesUnknown[2]
Risk factorsGenetic predisposition,[3] psychological stress,[4]
childhood abuse,
food poisoning,[5]
psychiatric illness[6]
Diagnostic methodBased on symptoms, exclusion of other diseases
Differential diagnosisCeliac disease, giardiasis, non-celiac gluten sensitivity, microscopic colitis, inflammatory bowel disease, small intestine bacterial overgrowth, bile acid malabsorption, colon cancer
TreatmentSymptomatic (dietary changes, medication, human milk oligosaccharides, probiotics, counseling)
PrognosisNormal life expectancy
Frequency10–15% (developed world) and 15–45% (globally)

The cause of IBS is not known, but it can be triggered by stress,[10] or an intestinal infection.[11]

Irritable Bowel Syndrome Media

Notes

  1. The cited review is based on sources ranging from 1988 to 2001 and is probably biased relative to a more recent research.

References

  1. 1.0 1.1 1.2 1.3 1.4 Definition and Facts for Irritable Bowel Syndrome. NIDDKD (23 February 2015). Retrieved 29 March 2016.
  2. 2.0 2.1 2.2 Symptoms and Causes of Irritable Bowel Syndrome. NIDDK (23 February 2015). Retrieved 29 March 2016.
  3. Rifaximin for Irritable Bowel Syndrome: A Meta-Analysis of Randomized Placebo-Controlled Trials. Medicine 95 (4) (January 2016). p. e2534. doi:10.1097/MD.0000000000002534.
  4. Brain-gut response to stress and cholinergic stimulation in irritable bowel syndrome. A preliminary study. Journal of Clinical Gastroenterology 17 (2) (September 1993). p. 133–41. doi:10.1097/00004836-199309000-00009.
  5. Post Infectious IBS - About IBS (March 8, 2021).
  6. New insights in the etiology and pathophysiology of irritable bowel syndrome: contribution of neonatal stress models. Pediatric Research 62 (3) (September 2007). p. 240–5. doi:10.1203/PDR.0b013e3180db2949.
  7. The burden of illness of irritable bowel syndrome: current challenges and hope for the future. Journal of Managed Care Pharmacy 10 (4) (2004). p. 299–309. doi:10.18553/jmcp.2004.10.4.299.
  8. Systematic review of the comorbidity of irritable bowel syndrome with other disorders: what are the causes and implications?. Gastroenterology 122 (4) (April 2002). p. 1140–56. doi:10.1053/gast.2002.32392.
  9. Irritable bowel syndrome - Symptoms and causes (in en). Mayo Clinic. Retrieved 2023-12-05.
  10. The role of stress on physiologic responses and clinical symptoms in irritable bowel syndrome. Gastroenterology 140 (3) (March 2011). p. 761–5. doi:10.1053/j.gastro.2011.01.032.
  11. Postinfectious irritable bowel syndrome. Gastroenterology 136 (6) (May 2009). p. 1979–88. doi:10.1053/j.gastro.2009.02.074.