From: Constipation in chronic kidney disease: it is time to reconsider
Diagnostic criteria for functional constipationa | |
 1. Must include 2 or more of the followingb:   a. Straining during more than 25% of defecations   b. Lumpy or hard stools (the Bristol Stool Form Scalec 1-2) more than 25% of defecations   c. Sensation of incomplete evacuation more than 25% of defecations   d. Sensations of anorectal obstruction/blockage more than 25% of defecations   e. Manual maneuvers to facilitate more than 25% of defecations (e.g., digital evacuation, support of the pelvic floor)   f. Fewer than 3 spontaneous bowel movements per week  2. Loose stools are rarely present without the use of laxatives  3. Insufficient criteria for irritable bowel syndrome | |
Diagnostic criteria for irritable bowel syndrome with predominant constipationd | |
 1. Recurrent abdominal pain, on average, at least 1 day per week in the last 3months, associated with 2 or more of the following criteria:   a. Related to defecation   b. Associated with a change in frequency of stool   c. Associated with a change in form (appearance) of stool  2. More than 25% of bowel movement with Bristol stool form type 1 or 2, and less than 25% of bowel movement with Bristol stool form type 6 or 7 |