Small Intestine Bacterial Overgrowth (SIBO)

Your Path

  • Small intestine bacterial overgrowth (SIBO)


  • Small bowel typically has few bacteria
  • Processes that inhibit motility or create blind pouches promote sb bacterial growth

Risk Factors

  • IBD
  • Any surgery that creates blind limbs→ eg gastrectomy w/bil II
  • Impaired intestinal motility for any reason
  • Systemic sclerosis
  • Decreased gastric acid


  • Bloating
  • Gas
  • Steatorrhea
  • Wt loss
  • Non-specific abdominal discomfort
  • B12 and vit D deficiency