Skip to main content

Table 2 Subtyping IBS using the predominant stool pattern [17]

From: Anxiety-depressive disorders among irritable bowel syndrome patients in Guilan, Iran

IBS with constipation (IBS-C) Hard or lumpy stools for ≥ 25% of bowel movements and loose (mushy) or watery stools for < 25% of bowel movements.
IBS with diarrhea (IBS-D) Loose (mushy) or watery stools for ≥ 25% of bowel movements and hard or lumpy stool for < 25% of bowel movements.
Mixed IBS (IBS-M) Hard or lumpy stools for ≥ 25% of bowel movements and loose (mushy) or watery stools for ≥ 25% of bowel movements.
Unsubtyped IBS Insufficient abnormality of stool consistency to meet criteria for IBSC, IBS-D or IBS-M.