Chronic Diarrhea

Chronic diarrhea is loose stools persisting for more than 4 weeks. Causes range from common (IBS, dietary) to serious (IBD, malabsorption, infections).

Table of Contents

Common Causes

  • Irritable bowel syndrome
  • Inflammatory bowel disease
  • Celiac disease
  • Microscopic colitis
  • Lactose or other intolerance
  • SIBO
  • Medications
  • Hyperthyroidism
  • Chronic infections (parasites)
  • Colorectal cancer (older adults)

When to See a Doctor

  • Diarrhea over 4 weeks
  • Weight loss, fever, blood in stool
  • Nighttime diarrhea
  • Symptoms after age 50

Related Symptoms

Inflammatory Bowel Disease

Common cause

 IBS

Common cause

 Microscopic Colitis

Common cause
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • AGA. Chronic Diarrhea Guidelines.