Is IBS the same as IBD?

No, IBS is a functional disorder without visible inflammation, while IBD (Crohn's, ulcerative colitis) involves chronic inflammation that can be seen on tests and cause more serious complications.

There is no cure, but symptoms can be effectively managed through diet, medication, and stress management. Many people find significant improvement with the low-FODMAP diet and CBT.

Does stress cause IBS?

Stress doesn't cause IBS but is a significant trigger for flares. The gut-brain connection means anxiety directly affects gut motility and sensitivity. Stress management is a key treatment component.

DigestiveICD-10: K58Affects approximately 10–15% of the global population

Irritable Bowel Syndrome (IBS)

Also known as: IBS, Spastic Colon, Nervous Stomach

IBS is a common functional gastrointestinal disorder characterized by chronic abdominal pain and altered bowel habits without identifiable structural abnormality. It is classified as IBS-C (constipation), IBS-D (diarrhea), or IBS-M (mixed). While not life-threatening, IBS significantly affects quality of life.

Symptoms

Recurrent abdominal pain associated with bowel movements

Bloating and abdominal distension

Alternating diarrhea and constipation

Mucus in the stool

Urgency to have a bowel movement

Feeling of incomplete evacuation

Symptoms worsening with stress or certain foods

Gas and flatulence

Causes

Gut-brain axis dysfunction
Visceral hypersensitivity
Altered gut motility
Intestinal microbiome imbalances
Post-infectious IBS following gastroenteritis
Psychological factors including stress and anxiety

Risk Factors

Female sex (twice as common in women)
Age under 50
Family history of IBS
History of anxiety, depression, or emotional trauma
Previous gastrointestinal infection

Diagnosis

Rome IV criteria assessment
Exclusion of alarm features (weight loss, bleeding, anemia)
Blood tests including CBC, CRP, and celiac serology
Stool tests to rule out infection and inflammation
Colonoscopy if alarm features are present or patient is over 45

Treatment

Dietary modifications: low-FODMAP diet, increased fiber for IBS-C
Antispasmodic medications
Laxatives for IBS-C or anti-diarrheals for IBS-D
Prescription medications: linaclotide for IBS-C; rifaximin for IBS-D
Low-dose tricyclic antidepressants or SSRIs for pain modulation
Cognitive behavioral therapy and gut-directed hypnotherapy

Prevention

Identify and avoid food triggers
Eat regular, balanced meals
Exercise regularly
Manage stress through mindfulness or therapy

When to See a Doctor

Symptoms significantly interfere with daily life
You experience weight loss, rectal bleeding, or persistent vomiting
Symptoms begin after age 50
Family history of colorectal cancer or IBD

Frequently Asked Questions

Related Conditions

Crohn's Disease

Autoimmune

Celiac Disease

Autoimmune

Fibromyalgia

Musculoskeletal

Food Poisoning

Infectious

Related from the Supplement Library

Peppermint

Strong

Herb · Relieves IBS symptoms (pain, bloating, transit)

Probiotics (Lactobacillus)

Strong

Probiotic · Gut microbiome balance and diversity

Psyllium Husk

Strong

Compound · Promotes digestive regularity

L-Glutamine

Moderate

Amino Acid · Gut lining repair and intestinal integrity

Slippery Elm

Preliminary

Herb · GI tract soothing and protection

These supplements have been studied in relation to Irritable Bowel Syndrome (IBS). Always consult your healthcare provider before starting any supplement, especially if you take medications.

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Medical Disclaimer: This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

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