- Reviewed by Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing
What are constipation and impaction?
Normally, people have bowel movements at fairly regular intervals, and stool passes out of the body easily without much straining or discomfort. Although the normal frequency of bowel movements varies from person to person, about 95% of healthy adults have a pattern that ranges from three times a day to three times a week.
In constipation, bowel movements either occur less often than expected or the stool is hard, dry and difficult to pass. Most of the time, constipation is not related to an illness or digestive disorder. Instead, the problem is caused by diet, lifestyle, medications or some other factor that hardens the stool or interferes with the stool's ability to pass comfortably. Some common triggers of constipation in adults include:
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About the Reviewer
Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing
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