Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Irritable bowel syndrome (IBS) subtype classification | |
| IBS subtype | Stool appearance |
| Constipation predominant IBS (IBS-C) | >25% hard stools, <25% loose stools |
| Diarrhea predominant IBS (IBS-D) | >25% loose stools, <25% hard stools |
| Mixed IBS (IBS-M) | >25% loose stools, >25% hard stools |
| Unclassified IBS (IBS-U) | <25% loose stools, <25% hard stools |
