Irritable Bowel Syndrome

Aka: Irritable Bowel Syndrome, Diarrhea Dominant Irritable Bowel Syndrome, Irritable Bowel Syndrome with Diarrhea, Pain Dominant Irritable Bowel Syndrome, Constipation Dominant Irritable Bowel Syndrome, Irritable Bowel Syndrome with Constipation, Irritable Bowel Syndrome with Alternating Bowel Habits

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II. Epidemiology

  1. Prevalence
    1. Overall in U.S.: 5-10%
    2. Lifetime Prevalence: 10-22%
  2. Slightly more common in women (1.5 fold increased risk over men)
  3. Prevalence for elderly same as for young (however, peak time of diagnosis at 20-39 years old)
  4. Most common condition seen by Gastroenterologists

III. Pathophysiology

  1. Organic factors
    1. Gastrointestinal Hypersensitivity
    2. Altered motility
    3. Neurohormonal factors
    4. Mucosal barrier dysfunction
  2. Provoked by psychosocial risk factors
    1. Prior physical or sexual abuse significantly increases risk
  3. Severe Gastroenteritis episode may be associated (Odds Ratio 5.9)
    1. Antibiotics (Rifamaxin, Neomycin) have reduced symptoms in some cases
  4. Familial association
    1. Risk increases 3 fold with Family History of Irritable Bowel Syndrome

IV. Associated Conditions

  1. Gastroesophageal Reflux Disease
  2. Dysphagia
  3. Globus Hystericus
  4. Fatigue
  5. Non-cardiac Chest Pain
  6. Urologic dysfunction
  7. Gynecologic disease (e.g. Chronic Pelvic Pain)
  8. Fibromyalgia
  9. Chronic Fatigue Syndrome
  10. Temperomandibular joint syndrome
  11. Food Allergy
  12. Low-fiber diet

V. Risk Factors: Psychosocial

  1. Anxiety Disorder
  2. Major Depression
  3. Somatization Disorder
  4. Sexual abuse or physical abuse
  5. Stressful life events
  6. Substance Abuse

VI. Types

  1. Alternating Diarrhea and Constipation
  2. Nervous Diarrhea
  3. Predominant Constipation
  4. Upper Abdominal Bloating and discomfort

VII. Symptoms

  1. Altered bowel habits
    1. Diarrhea
    2. Constipation
    3. Scybalous stools (hard, pellet-like stools)
    4. Mucus per Rectum (40% of cases)
    5. Incomplete evacuation Sensation (69% of cases)
  2. Recurrent and Chronic Abdominal Pain (73% of cases)
    1. Upper abdominal discomfort after eating
    2. Left Lower Quadrant Abdominal Pain
    3. Right Lower Quadrant Abdominal Pain
    4. Abdominal Pain relieved with Defecation (52% of cases)
  3. Gaseousness
    1. Excessive Flatulence or Eructation
    2. Normal patients experience about 13 farts per day
    3. Abdominal Distention (32% of cases)
  4. Nausea or Vomiting
  5. References
    1. Ford (2008) JAMA 300(15): 1793-805 [PubMed]

VIII. Exam

  1. Obtain a full set of Vital Signs including weight for comparison with historical weights
  2. Perform a general exam evaluating for undiagnosed systemic disease
  3. Perform a complete abdominal exam including genitourinary exam and rectal exam

IX. Diagnosis: Rome IV Criteria

  1. Abdominal symptoms persistent or recurrent for 6 months or more
    1. Symptoms occur at least one day per week for at least 3 months
    2. Abdominal Pain, bloating or discomfort
  2. Two or more below
    1. Related to Defecation (Straining, stool urgency, incomplete evacuation, pain relieved with stooling)
    2. Change in frequency of stool
    3. Change in appearance, form or consistency of stool
  3. Other symptoms supporting Irritable Bowel Syndrome diagnosis
    1. Abnormal stool frequency (>3/day or <3/week)
    2. Abnormal stool form (loose or watery, or hard and lumpy)
    3. Abnormal stool passage (urgency, straining, incomplete emptying)
    4. Mucus in stool
    5. Abdominal Distention or bloating (exclude red flag causes)
  4. Subtype classification
    1. Diarrhea predominant
      1. More than 25% of stools are Bristol Stool Scale 6-7 (Mushy or liquid stools) and less than 25% are type 1-2
    2. Constipation predominant
      1. More than 25% of stools are Bristol Stool Scale 1-2 (Hard or lumpy stool) and less than 25% are type 6-7
    3. Mixed
      1. More than 25% of stools are Bristol Stool Scale 6-7 (Mushy or liquid stools)
      2. More than 25% of stools are Bristol Stool Scale 1-2 (Hard or lumpy stool)
  5. Changes from Ro9me III Criteria
    1. Altered stool passage criteria removed (Straining, stool urgency, incomplete evacuation)
    2. Rome IV requires weekly symptoms (previously monthly symptoms with Rome III)
  6. References
    1. Lacy (2016) Gastroenterology 150(6): 1393-407 [PubMed]

X. Diagnosis: Manning Criteria

  1. Onset of pain linked to more frequent Bowel Movements
  2. Looser stools associated with onset of pain
  3. Pain relieved by stool passage
  4. Noticeable Abdominal Bloating
  5. Sensation of incomplete evacuation more than 25% of the time
  6. Diarrhea with mucus more than 25% of the time

XI. Red Flags: Symptoms and signs suggestive of other diagnosis

  1. Red Flag Symptoms
    1. Nighttime Diarrhea
    2. Nocturnal Stool Incontinence
    3. Nocturnal awakening due to abdominal discomfort
    4. Abdominal Pain that interferes with normal sleep
    5. Diarrhea without pain suggests alternative diagnosis
    6. Severe large volume Diarrhea (esp. bloody, nocturnal, or unrelated to eating)
    7. Tenesmus
  2. Red Flag Signs
    1. Visible or occult blood in stool
    2. Unintentional Weight Loss
    3. Recurrent Fever
    4. Abdominal mass
    5. Jaundice
    6. Lymphadenopathy
  3. Red Flag Risk Factors
    1. Family History of Colon Cancer
    2. Family History of Inflammatory Bowel Disease
    3. Family History or other risk factors for Ovarian Cancer
    4. Older patients with new onset after age 55 years old
  4. Red Flag Laboratory abnormality
    1. Leukocytosis
    2. Anemia
    3. Increased Erythrocyte Sedimentation Rate (ESR) or C-Reactive Protein

XII. Differential Diagnosis

  1. Colonic Adenocarcinoma (Colon Cancer)
  2. Inflammatory Bowel Disease
    1. Ulcerative Colitis
    2. Crohn's Disease
  3. Abdominal Angina (Ischemic Colitis or Mesenteric Ischemia)
  4. Pseudo-obstruction (Diabetes Mellitus, Scleroderma)
  5. Intermittent Sigmoid Volvulus
  6. Endocrine causes
    1. Hypothyroidism or Hyperthyroidism
    2. Diabetes Mellitus
    3. Addison's Disease
    4. Electrolyte abnormalities associated with Constipation (Hypokalemia, Hypomagnesemia)
  7. Malabsorption
    1. Celiac Sprue (strongly consider if Diarrhea with red flags)
    2. Lactose Intolerance
    3. Pancreatic insufficiency
  8. Infectious Causes
    1. Giardiasis
    2. Clostridium difficile (Pseudomembranous colitis)
    3. Toxic Megacolon or Bacterial overgrowth syndrome
  9. Genitourinary Causes
    1. Endometriosis
  10. Other Functional Gastrointestinal Disorders
    1. Dyssynergic Defecation (Pelvic Floor Dysfunction)
    2. Functional Abdominal Bloating
    3. Functional Diarrhea
  11. Psychiatric illness (provocative)
    1. Major Depression
    2. Somatization
    3. Anxiety Disorder or Panic Disorder
  12. Medications
    1. Opioids (Opioid Induced Constipation)
    2. See Medication Causes of Diarrhea
    3. See Medication Causes of Constipation

XIII. Evaluation

  1. General
    1. Avoid a piecemeal work-up
      1. Perform a complete evaluation, based on presenting symptoms, the first time
      2. Avoid over-investigation and exhaustive testing
    2. Irritable bowel is no longer diagnosis of exclusion
      1. Diagnostic criteria above are sufficient to treat
      2. Lab and imaging are typically low yield in cases otherwise suggestive of Irritable Bowel Syndrome
        1. Fewer than 5% of Irritable Bowel Syndrome patients receive an alternative diagnosis
        2. El Serag (2004) Alminent Pharmacol Ther 19(8): 861-70 [PubMed]
    3. Indications for full evaluation and Gastroenterology
      1. Red flags present (see above) or
      2. Onset over age 50-55 years
  2. Careful History
    1. History of Gastrointestinal Symptoms
    2. Family History of gastrointestinal disease
    3. Marital History
    4. Sexual Abuse (strong correlation)
  3. Reasonable exam
    1. Thorough abdominal examination
    2. Also focus on possible endocrine causes
  4. Look for Food Intolerance (consider diet diary)
    1. Lactose Intolerance
    2. Sorbitol
    3. Wheat (Gluten Sensitive Enteropathy)

XIV. Labs: Initial, based on predominant symptom

  1. Constipation Dominant
    1. Complete Blood Count (CBC)
    2. Serum Electrolytes or Chemistry panel (chem8) including Serum Calcium
    3. Thyroid Stimulating Hormone (TSH)
    4. Digital Rectal Exam for rectal mass, impaction
    5. Other tests to consider
      1. Anorectal manometry (dyssynergic Defecation)
      2. Colon transit study (slow transit Constipation)
  2. Diarrhea Dominant
    1. See Chronic Diarrhea
    2. See Chronic Watery Diarrhea
    3. Distinguish from non-allergic food intolerance (e.g. Lactose), Bile Acid Malabsorption
    4. Distinguish from chronic Functional Diarrhea (>25% loose stools without pain or bloating)
    5. Evaluation in absence of negative red flags
      1. Complete Blood Count (CBC)
      2. Celiac Sprue testing (esp. if signs of Iron Deficiency)
        1. IgA Tissue Transglutaminase AND
        2. Total IgA (with reflex if low to IgG Gliadin)
    6. Other tests to consider if indicated by history (previously recommended as part of standard default protocol)
      1. Fecal Calprotectin
      2. Stool GiardiaAntigen
      3. Stool Ova and Parasites
      4. Fecal Leukocytes
      5. Stool 48 hour collection for bile acid (evaluation for bile acid Diarrhea)
      6. Serum Electrolytes or chemistry panel
      7. Thyroid Stimulating Hormone (TSH)
      8. Erythrocyte Sedimentation Rate (ESR) or C-Reactive Protein (C-RP)
      9. Colonoscopy with biopsy (see below)
  3. Pain Dominant
    1. Complete Blood Count (CBC)
  4. Reference
    1. Fass (2001) Arch Intern Med 161:2081-8 [PubMed]

XV. Diagnostics

  1. Colonoscopy of Flexible Sigmoidoscopy
    1. More uncomfortable in Irritable Bowel Syndrome
    2. Not absolutely indicated if remainder of evaluation suggests Irritable Bowel Syndrome
      1. Consider if red flags or age over 50 years
  2. Consider additional studies as indicated (to evaluate differential diagnosis)
    1. CT Abdomen with contrast
    2. Right upper quadrant Ultrasound
    3. Upper GI Study
    4. Barium Enema

XVI. Management: General Measures

  1. See the patient frequently
    1. Maintain a strong doctor-patient relationship
    2. Offer frequent reassurance of Irritable Bowel Syndrome as a benign condition
    3. Identify and treat emotional stressors
    4. Answer patients questions in unhurried environment
    5. Patient should keep a journal of symptoms combined with dietary intake and other triggers
  2. Do not downplay symptoms as psychiatric
    1. Irritable Bowel is a real functional bowel problem
    2. Explain physiology and absence of serious illness
  3. Reduce stressors
    1. Teach Relaxation Techniques
    2. Teach coping mechanisms for chronic illness
  4. Regular Daily Exercise
  5. Consider Probiotics (weak evidence)
    1. May improve bloating, Flatulence, pain and Constipation
    2. Bifidobacterium infantis (Align)
    3. Bifidobacterium bifidum MIMBb75
      1. Decreases overall irritable bowel symptoms
      2. Guglielmetti (2011) Aliment Pharmacol Ther 33(10): 1123-32 [PubMed]
  6. General Diet recommendations
    1. Get adequate fluid intake (>64 ounces/day)
    2. Bulk agents
      1. See Fiber Supplementation
      2. Gradually increase to 25-30 g daily (and ensure adequate hydration)
        1. Risk of gas, bloating, distention, Flatulence if started too quickly with high dosing
        2. Side effects more likely with dyssynergic Defecation
        3. Side effects are more common with insoluble fiber
      3. Soluble Fiber Sources (absorbs water)
        1. Psyillium (Metamucil)
        2. Oat bran
      4. Insoluble Fiber Sources
        1. Methylcellulose (Citrucel)
        2. High fiber-bran, wheat brain
    3. Avoid FODMAPS (Fementable Oligo- di and mono saccharides and polyols)
      1. See FODMAPs
      2. Avoid fructose (e.g. apples, pears, high fructose corn syrup)
      3. Avoid Fructans (fructooligosaccharides, inulins, levans - e.g. high fiber bars)
      4. Avoid Lactose (consider challenge with quart of skim milk)
      5. Avoid Polyols (sugar Alcohols: Sorbitol, xylitol, Mannitol, malitol
      6. Avoid Galactooligosaccharides (e.g. brussel sprouts, onions)
    4. Consider avoiding other provocative agents
      1. Consider Elimination Diet (although no evidence to support this)
        1. True food intolerance is a rare cause of symptoms
        2. FODMAPS restriction has much higher yielf
      2. Avoid Caffeine
      3. Avoid Alcohol
      4. Avoid Legumes and other gas producing foods (see FODMAPS above)
      5. Avoid Artificial Sweeteners and carbonated beverages (see Polyols above)
      6. Avoid Fatty meals
      7. Corn, wheat and citrus may also exacerbate Irritable Bowel Syndrome
      8. Some fiber can also exacerbate symptoms
  7. Avoid Provocative or addictive medications
    1. See Medication Causes of Diarrhea
    2. See Medication Causes of Constipation
    3. Avoid Stimulant Laxatives (except brief use)
      1. Correctol
      2. Dulcolax
      3. Cascara
    4. Avoid Sedatives or Tranquilizers (Benzodiazepines)
    5. Avoid Opioids
    6. Avoid Anticholinergic Medications such as Antihistamines (Constipation dominant IBS)
    7. Other medications that may contribute to Irritable Bowel Syndrome symptoms
      1. Antibiotics
      2. Calcium Channel Blockers
      3. Metformin
      4. Magnesium containing Antacids

XVII. Management: Diarrhea Dominant Irritable Bowel Syndrome

  1. General measures (see above)
    1. Consider eliminating lactose, Caffeine from diet
    2. Exclude Gluten Sensitive Enteropathy as cause
    3. Fiber supplementation
    4. Probiotics
    5. Consider dietician Consultation
    6. Avoid provocative medications
      1. See Medication Causes of Diarrhea
  2. Cholestyramine 4 grams qhs to 6 times daily
    1. Limited evidence
    2. Consider empiric trial (bile acid Diarrhea)
  3. Loperamide (Imodium) 2-4 mg up to four times daily
    1. Before meals and as needed in stressful social situations
    2. Lomotil could be used, but has not been studied in IBS.
  4. Ondansetron (Zofran)
    1. Ondansetron 4 mg up to three times daily (typically once daily or less)
    2. Serotonin (5-HT3) receptor antagonist
    3. Reduces rapid transit and stool urgency and frequency
  5. Amitriptyline (Elavil)
    1. Amitriptyline 10 mg titrated to 30-50 mg at bedtime (increasing dose by 10 mg per 1-2 weeks)
    2. Consider for pain and Diarrhea (Anticholinergic effects may reduce stooling)
  6. Rifaximin (Xifaxan)
    1. Small improvements in symptoms (NNT 10) at a high cost ($1300 for a 14 day course)
    2. Relapse by 6 months is common (requiring another dose)
  7. Eluxadoline (Viberzi)
    1. Schedule IV Opioid agonist similar to Imodium, but taken daily at $1400/month
    2. Marginal efficacy (NNT 11) for decreased Diarrhea and Abdominal Pain at 6 months
    3. Risk of serious Pancreatitis (deaths have occurred) due to sphincter of odi spasm
      1. Contraindicated in prior Cholecystectomy, prior Pancreatitis or >3 Alcohol drinks per day
      2. https://www.fda.gov/safety/medwatch/safetyinformation/safetyalertsforhumanmedicalproducts/ucm546771.htm
    4. (2016) Presc Lett 23(6):32
    5. (2017) Presc Lett 24(5):27
  8. Alosetron (Lotronex)
    1. Like Ondansetron, also a Serotonin (5-HT3) receptor antagonist that reduces rapid transit and stool urgency
    2. Risk of Constipation and Ischemic Colitis
      1. Iatrogenic deaths have occured
      2. Black box warning: Signed Informed Consent needed
    3. FDA controlled prescriptions only for women with IBS with Diarrhea
      1. Requires special Informed Consent and must be part of a prescriber program
    4. Dose: 1 mg daily (may advance to twice daily)
  9. Peppermint
    1. Enteric coated Peppermint Oil (e.g. Pepogest)
    2. Pittler (1998) Am J Gastroenterol 93:1131-5 [PubMed]

XVIII. Management: Pain Dominant Irritable Bowel Syndrome

  1. General measures (see above)
    1. Exercise
    2. Cognitive Behavioral Therapy
    3. Pain management
  2. Chronic Pain
    1. Tricyclic Antidepressants
      1. Amitriptyline (Elavil) 25 mg orally at bedtime
      2. Desipramine (Norpramin) 50 mg orally three times daily
    2. Tegaserod (Zelnorm)
      1. Withdrawn from market in 2007 due to cardiovascular risks (but still available for limited use)
      2. Nyhlin (2004) Scand J Gastroenterol 39:119-26 [PubMed]
    3. SSRI medications may be effective as adjunct (e.g. Zoloft)
      1. However, not first-line agents due to insufficient evidence
      2. Tabas (2004) Am J Gastroenterol 99:914-20 [PubMed]
  3. Post-prandial pain: Anticholinergic
    1. Avoid chronic, frequent use
    2. Trial for 2 weeks and stop if no effect
    3. Antispasmodics
      1. Dicyclomine (Bentyl) 10-20 mg, 15-30 min before meal, up to 4 times daily
      2. Hyoscamine XR (Levbid) 0.375 to 0.75 mg twice daily (up to 1.5 g/day)
      3. Hyoscyamine (Levsin) 0.125 to 0.25 mg, 15-30 min before meal, up to every 4 hours (max 1.5 mg/day)
    4. Peppermint Oil (see reference below)
      1. Enteric coated Peppermint Oil (e.g. Pepogest)

XIX. Management: Constipation Dominant Irritable Bowel Syndrome

  1. General measures (see above)
    1. Exercise
    2. Use gastro-colic response
      1. Wake-up, eat breakfast and anticipate stool in AM
    3. Avoid provocative medications
      1. See Medication Causes of Constipation
  2. First line: Bulk agents (e.g. Fiber, Psyllium, bran)
    1. Titrate to 20-30 grams per day
    2. Risk of bloating initially (requires adequate hydration)
    3. Evidence to support is lacking, but remains a central tool in IBS management
  3. Second line (use at bedtime for AM stool)
    1. Improves stool frequency, but may not alter Abdominal Pain or bloating
    2. Osmotic agents
      1. Polyethylene glycol (Miralax) 1 capful in 8 ounces at bedtime (preferred)
      2. Lactulose 1-2 teaspoons at bedtime
      3. Milk of Magnesia 1-2 tablespoons at bedtime
    3. Consider Stimulant Laxatives if osmotic agents fail
      1. Senna or Cascara
      2. Bisacodyl
  4. Third line (typically by gastrointestinal specialist referral)
    1. Prescription agents that increase gastrointestinal transit and intestinal fluid
      1. Expensive (even generic Amitiza is $300 per month)
    2. Amitiza (Lubiprostone)
      1. Drossman (2009) Aliment Pharmacol Ther 29(3): 329-41 [PubMed]
    3. Linzess (Linaclotide)
      1. Expensive ($7 per pill) for minimal efficacy (NNT 5-8) for decreased pain
      2. (2012) Prescr Lett 19(12): 68-9
    4. Ibsrela (Tenapanor)
      1. Sodium/Hydrogen Exchanger 3 Inhibitor (NHE3 Inhibitor)
      2. Taken 50 mg orally twice daily immediately before first meal of day and then again in the evening
      3. Expensive ($1500/month in 2022 for twice daily dosing; other third line agents are $300 to $500/month)
      4. Increases intestinal fluid with similar efficacy as Lubiprostone and Linaclotide
      5. Risk of Diarrhea (16% of cases) which may be severe (2.5% of cases)
      6. (2022) Presc Lett 29(6): 36
      7. Curtis (2022) Am Fam Physician 105(6): 656-8 [PubMed]
    5. Trulance (Plecanatide)
  5. Restricted Use agent (emergency use only due to risk)
    1. Tegaserod (Zelnorm): 5-HT4 agonist
      1. Cardiovascular event risk prompted removal from U.S. market in 2007
      2. Dose: 6 mg bid 30 minutes before meals
  6. Other agents potentially useful
    1. Guar-Gum
      1. Parisi (2002) Dig Dis Sci 47:1696-704 [PubMed]
    2. Peppermint
      1. Enteric coated Peppermint Oil (e.g. Pepogest)
      2. Pittler (1998) Am J Gastroenterol 93:1131-5 [PubMed]
    3. Loxiglumide (Cholecystokinin-A receptor antagonist)

XX. Management: Other specific symptoms or comorbidities

  1. Excessive Flatus (gas)
    1. See General dietary recommendations (including FODMAP avoidance) as above
    2. Simethicone 40 to 125 mg up to qid
    3. Beta-galactosidase (Beano)
  2. Comorbid Mood Disorders
    1. Major Depression
      1. SSRI Medications or other Antidepressants
    2. Anxiety
      1. See Anxiety Management

XXI. Resources

  1. International Foundation for Functional GI Disorders
    1. http://www.iffgd.org
  2. American College of Gastroenterology
    1. http://www.ACG.GI.org

XXII. References

  1. (2015) Presc Lett 22(5):29
  2. Burgers (2020) Am Fam Physician 101(8): 472-80 [PubMed]
  3. Camilleri (2000) Gastroenterology 120:652-68 [PubMed]
  4. Camilleri (1999) Am J Med 107(5A):27F-32S [PubMed]
  5. Chang (2006) Curr Treat Options Gastroenterol 9(4):314-23 [PubMed]
  6. Drossman (1999) Am J Med 107(5A):41S-50S [PubMed]
  7. Hammer (1999) Am J Med 107(5A):5S-11S [PubMed]
  8. Heymann-Monnikes (2000) Am J Gastroenterol 95:981-4 [PubMed]
  9. Holten (2003) Am Fam Physician 67(10):2157-62 [PubMed]
  10. Jailwala (2000) Ann Intern Med 133:136-47 [PubMed]
  11. Mertz (2003) N Engl J Med 349:2136-46 [PubMed]
  12. Naliboff (1999) Curr Rev Pain 3:144-52 [PubMed]
  13. Ringel (2001) Annu Rev Med 52:319-38 [PubMed]
  14. Viera (2002) Am Fam Physician 66:1867-80 [PubMed]
  15. Weinberg (2014) Gastroenterology 147(5):1146-8 +PMID:25224526 [PubMed]
  16. Wilkins (2012) Am Fam Physician 86(5): 419-26 [PubMed]
  17. Wilkinson (2021) Am Fam Physician 103(12): 727-36 [PubMed]

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Related Studies

Ontology: Irritable Bowel Syndrome (C0022104)

Definition (MEDLINEPLUS)

Irritable bowel syndrome (IBS) is a problem that affects the large intestine. It can cause abdominal cramping, bloating, and a change in bowel habits. Some people with the disorder have constipation. Some have diarrhea. Others go back and forth between the two. Although IBS can cause a great deal of discomfort, it does not harm the intestines.

IBS is common. It affects about twice as many women as men and is most often found in people younger than 45 years. No one knows the exact cause of IBS. There is no specific test for it. Your doctor may run tests to be sure you don't have other diseases. These tests may include stool sampling tests, blood tests, and x-rays. Your doctor may also do a test called a sigmoidoscopy or colonoscopy. Most people diagnosed with IBS can control their symptoms with diet, stress management, probiotics, and medicine.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases
Definition (MSHCZE) Funkční porucha tlustého střeva, „střevní neuróza“, projevující se četnými obtížemi, zejm. ve vyprazdňování (nadýmání, průjmy, zácpa atd.). (cit. Velký lékařský slovník online, 2013 http://lekarske.slovniky.cz/ )
Definition (NCI_NCI-GLOSS) A disorder of the intestines commonly marked by abdominal pain, bloating, and changes in a person's bowel habits. This may include diarrhea or constipation, or both, with one occurring after the other.
Definition (NCI) Gastrointestinal symptoms characterized by chronic abdominal pain and altered bowel habits in the absence of any organic cause.(NICHD)
Definition (MSH) A disorder with chronic or recurrent colonic symptoms without a clearcut etiology. This condition is characterized by chronic or recurrent ABDOMINAL PAIN, bloating, MUCUS in FECES, and an erratic disturbance of DEFECATION.
Definition (PSY) Functional disorder of the colon that is generally psychosomatic.
Definition (CSP) chronic noninflammatory disease characterized by abdominal pain, altered bowel habits consisting of diarrhea or constipation or both, and no detectable pathologic change; a variant form is characterized by painless diarrhea; it is a common disorder with a psychophysiologic basis; called also spastic or irritable colon.
Concepts Disease or Syndrome (T047)
MSH D043183
ICD9 564.1
ICD10 K58 , K58.9
SnomedCT 10743008, 155783000, 197124009, 266525002, 192434000
LNC LA10555-3
English Irritable Bowel Syndrome, COLON SPASTIC, IRRITABLE BOWEL SYNDROME, IBS, irritable bowel, irritable bowel syndrome (diagnosis), irritable bowel syndrome, mucous colitis, irritable colon, Colon spastic, Colitis mucous, Irritable bowel syndrome NOS, Irritable Bowel Syndrome [Disease/Finding], colon spasm, nervous colitis, colons spastic, functional bowel disease, Irritable;colon, Colitis;mucous, bowels irritable, colon spastic, disease irritable bowel, irritable colon syndrome, bowel ibs irritable syndrome, bowels irritable syndrome, irritable bowel disease, bowel disease irritable, bowel syndrome irritable, irritable bowel syndrome (IBS), irritable bowel disease (IBD), spastic colitis, syndrome irritable bowel, IBD, membranous colitis, colon irritable, colon spasms, functional bowel syndrome, irritable bowel syndromes, Functional bowel syndrome, Irritable colon (disorder), Irritable bowel syndrome (disorder), Irritable colon, Irritable bowel syndrome, Irritable bowel - IBS, [X]Psychogenic IBS, Irritable colon - Irritable bowel syndrome, Already mapped above AAHA ID #: 739, spastic colon, mucus colitis, -- Irritable Bowel Syndrome, Colitides, Mucous, Colitis, Mucous, Colon, Irritable, Irritable Bowel Syndromes, Mucous Colitides, Syndrome, Irritable Bowel, Syndromes, Irritable Bowel, Irritable Colon, Mucous Colitis, Mucous colitis, Irritable colon syndrome, Spastic colon, Adaptive colitis, Membranous colitis, Colon spasm, Functional bowel disease, IBS - Irritable bowel syndrome, Irritable bowel, Nervous colitis, Spastic colitis, IC - Irritable colon, bowel; disease, functional, bowel; functional syndrome, bowel; irritable, bowel; syndrome, functional, colitis; spastic, colon; irritable, colon; spasm, colon; spastic, irritable bowel; syndrome, spasm; colon, spastic; colitis, spastic; colon, syndrome; bowel, functional, syndrome; functional, bowel, syndrome; irritable bowel, IBS (irritable bowel syndrome)
Dutch slijmerige colitis, colitis met slijm, prikkelbaar colon, prikkelbare darm, colon spastisch, spastisch colonsyndroom, spastisch colon, functioneel darmsyndroom, Irritable bowel syndrome, colitis; spastisch, colon; prikkelbaarheid, colon; spasme, colon; spastisch, darm; aandoening, functioneel, darm; functioneel syndroom, darm; prikkelbaarheid, darm; syndroom, functioneel, irritable bowel; syndroom, spasme; colon, spastisch; colitis, spastisch; colon, syndroom; darm, functioneel, syndroom; functioneel, darm, syndroom; irritable bowel, prikkelbare darmsyndroom, Colon, prikkelbaar, Darm, prikkelbare, Colitis, mukeuze, Prikkelbaredarmsyndroom, Syndroom, prikkelbaredarm-
French Colite glaireuse, SCI, Côlon spastique, Côlon spasmodique, Colite mucoïde, COLON SPASMODIQUE, SYNDROME DU COLON IRRITABLE, Colopathie fonctionnelle, Colite muqueuse, Colite spasmodique, Côlon irritable, Syndrome de l'intestin irritable, Syndrome du côlon irritable, Colite muco-membraneuse, Colite mucomembraneuse, Entérite muco-membraneuse, Entérite mucomembraneuse, SCI (Syndrome du Côlon Irritable)
German Kolitis mucosa, IBS, spastisches Kolon, Kolonspasmus, COLON IRRITABILE, COLONSPASMUS, funktionelles Kolonsyndrom, Reizkolon-Syndrom, Colitis mucosa, Colon irritabile, Irritable-Bowel-Syndrom, Irritables Kolon, Kolon, irritables, Reizdarm, Reizkolon, Kolitis, muköse
Italian Sindrome del colon irritabile, Colon spastico, Intestino irritabile, Sindrome da colon irritabile, Colite mucosa, Colite spastica, Colon irritabile, IBS, Sindrome funzionale intestinale, Sindrome dell'intestino irritabile
Portuguese Síndrome de cólon irritável, Intestino irritável, Colite mucosa, Cólon espástico, Cólon irritável, COLON ESPASTICO, SINDROME DO INTESTINO IRRITAVEL, Síndrome intestinal funcional, Cólon Irritável, Síndrome de Colo Irritável, Síndrome do Cólon Irritável, Síndrome do Colo Irritável, Síndrome de Cólon Irritável, Síndrome de Intestino Irritável, Síndrome de intestino irritável, Colite Mucosa, Síndrome do Intestino Irritável, Colo Irritável
Spanish Colon espástico, Intestino irritable, Colon irritable, Síndrome de colon irritable, Colitis mucosa, COLON ESPASTICO, Síndrome intestinal funcional, síndrome de intestino irritable, síndrome de colon irritable, colon irritable, síndrome de colon irritable (trastorno), colon irritable (trastorno), colon adaptable, Síndrome del Intestino Irritable, colitis espástica, colitis mucosa, colitis nerviosa, colon espástico, enfermedad funcional del intestino, espasmo colónico, Síndrome del intestino irritable, colitis membranosa, Colitis Mucosa, Colon Irritable, Síndrome del Colon Irritable
Japanese 痙性結腸, 過敏性結腸症候群, 結腸痙攣, ｶﾋﾞﾝｾｲﾀﾞｲﾁｮｳｼｮｳｺｳｸﾞﾝ, ｹｲｾｲｹｯﾁｮｳ, ｶﾋﾞﾝｾｲﾀﾞｲﾁｮｳ, ｶﾋﾞﾝｾｲﾁｮｳｼｮｳｺｳｸﾞﾝ, ｶﾋﾞﾝｹｯﾁｮｳ, ｶﾋﾞﾝｾｲｹｯﾁｮｳｼｮｳｺｳｸﾞﾝ, ｹｯﾁｮｳｹｲﾚﾝ, ﾈﾝｴｷｾｲﾀﾞｲﾁｮｳｴﾝ, 粘液性結腸炎, 過敏性大腸, 過敏性結腸, 過敏性大腸症, 過敏性腸症, 結腸炎-粘液, 結腸炎-粘液性, 痙攣性結腸, 結腸-過敏, 大腸炎-粘液性, 刺激結腸, 結腸-過敏性, 粘液結腸炎, 過敏性大腸症候群, 過敏腸管症候群, 粘液性大腸炎, 過敏性腸症候群, 過敏結腸, ｷﾉｳｾｲﾁｮｳｶﾝｼｮｳｺｳｸﾞﾝ, 機能性腸管症候群
Swedish Irritabel tarm
Czech syndrom dráždivého tračníku, colon irritabile, kolitida mukózní, tračník dráždivý, Syndrom dráždivého tračníku, Mukózní kolitida, Spastický tračník, Funkční střevní syndrom, IBS
Finnish Ärtyvän suolen oireyhtymä
Russian OBODOCHNOI KISHKI RAZDRAZHENIIA SINDROM, TOLSTOGO KISHECHNIKA RAZDRAZHENIE, TOLSTOI KISHKI RAZDRAZHENIIA SINDROM, KOLIT SLIZISTYI, SINDROM RAZDRAZHENNOGO KISHECHNIKA, РАЗДРАЖЕННОГО КИШЕЧНИКА СИНДРОМ, СИНДРОМ РАЗДРАЖЕННОГО КИШЕЧНИКА, СИНДРОМ РАЗДРАЖЕННОЙ КИШКИ, SINDROM RAZDRAZHENNOI KISHKI, КИШЕЧНИКА РАЗДРАЖЕННОГО СИНДРОМ, ОБОДОЧНОЙ КИШКИ РАЗДРАЖЕНИЯ СИНДРОМ, RAZDRAZHENNOGO KISHECHNIKA SINDROM, KISHECHNIKA RAZDRAZHENNOGO SINDROM, VOSPALENNOGO KISHECHNIKA SINDROM, OBODOCHNAIA KISHKA RAZDRAZHENNAIA, ОБОДОЧНАЯ КИШКА РАЗДРАЖЕННАЯ, ВОСПАЛЕННОГО КИШЕЧНИКА СИНДРОМ, КОЛИТ СЛИЗИСТЫЙ, ТОЛСТОГО КИШЕЧНИКА РАЗДРАЖЕНИЕ, ТОЛСТОЙ КИШКИ РАЗДРАЖЕНИЯ СИНДРОМ
Korean 자극성 장증후군
Croatian SINDROM IRITABILNOG CRIJEVA
Polish Zespół drażliwego jelita, Zespół nadwrażliwego jelita, Zespół jelita nadwrażliwego
Hungarian IBS, Irritabilis bél, Colon spasticum, Spastikus vastagbél, Irritabilis colon, Irritabilis vastagbél syndroma, Irritabilis bél syndroma, Colitis, nyákos, Nyákos colitis, Funkcionális bél syndroma
Norwegian Irritabel tarm, IBS, Irritabel tarm-syndrom
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Irritable bowel syndrome with diarrhea (C0348898)

Concepts Disease or Syndrome (T047)
ICD10 K58.0
SnomedCT 197125005
English Irritable bowel syn wth diarrh, irritable bowel syndrome with diarrhea (diagnosis), Irritable bowel syndrome with diarrhea, Irritable bowel syndrome with diarrhoea, Irritable bowel syndrome with diarrhea (disorder), bowel; irritable, with diarrhea, diarrhea; irritable bowel syndrome, irritability; bowel, with diarrhea, irritable bowel syndrome; diarrhea, syndrome; irritable bowel, with diarrhea
German Colon irritabile mit Diarrhoe
Korean 설사를 동반한 자극성 장증후군
Dutch darm; prikkelbaarheid, met diarree, diarree; irritable bowel syndrome, irritable bowel syndrome; diarree, prikkelbaarheid; darm, met diarree, syndroom; irritable bowel, met diarree, Irritable bowel syndrome, met diarree
Spanish síndrome del intestino irritable con diarrea (trastorno), síndrome del intestino irritable con diarrea
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Irritable bowel syndrome characterized by constipation (C1868889)

Concepts Disease or Syndrome (T047)
SnomedCT 440630006
Dutch constipatie predominant irritable-bowel syndrome
French Côlon irritable à constipation prédominante
German Reizdarmsyndrom mit ueberwiegend Verstopfung
Italian Sindrome dell'intestino irritabile con costipazione predominante
Portuguese Síndrome do intestino irritável por obstipação predominante
Spanish Síndrome de intestino irritable con predominio del estreñimiento, síndrome de intestino irritable caracterizado por estreñimiento (trastorno), síndrome de intestino irritable caracterizado por constipación, síndrome de intestino irritable caracterizado por estreñimiento
Japanese ﾍﾞﾝﾋﾟｶﾞﾀｶﾋﾞﾝｾｲﾁｮｳｼｮｳｺｳｸﾞﾝ, 便秘型過敏性腸症候群
Czech Syndrom podráždění střev s predominantní zácpou
English Constipation predominant irritable bowel syndrome, Irritable bowel syndrome characterized by constipation (disorder), Irritable bowel syndrome characterised by constipation, Irritable bowel syndrome characterized by constipation
Hungarian Irritabilis bél syndroma dominálóan obstipatióval
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Irritable bowel syndrome characterized by alternating bowel habit (C2584680)

Concepts Disease or Syndrome (T047)
SnomedCT 440544005
English Irritable bowel syndrome characterized by alternating bowel habit, Irritable bowel syndrome characterised by alternating bowel habit, Irritable bowel syndrome characterized by alternating bowel habit (disorder)
Spanish síndrome de intestino irritable caracterizado por hábito intestinal alternante, síndrome de intestino irritable caracterizado por hábito intestinal alternante (trastorno)
Derived from the NIH UMLS (Unified Medical Language System)

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