Constipation is the infrequent and difficult passage of stool.
The frequency of bowel movements among healthy people varies greatly, ranging from three movements a day to three a week. As a rule, if more than 3 days pass without a bowel movement, the intestinal contents may harden, and a person may have difficulty or even pain during elimination. Stool may harden and be painful to pass, however, even after shorter intervals between bowel movements. Many false beliefs exist concerning proper bowel habits. These misconceptions have led to a marked overuse and abuse of laxatives.