Frequency Of Bowel Movements Whats Normal - Constipation: Digestive Disorders


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Frequency of bowel movements: What's normal?


What is regularity? It's not a medical concept, but more of a myth that you've got to move your bowels each day to be healthy. Experts say otherwise. In fact, as far back as 1909, the British physiologist Sir Arthur Hurst said it wasn't unusual to find healthy people who had a bowel movement three times a day or once every three days. Today, that's still the range that's considered "normal." But many perfectly healthy people don't even fall within this broad range. In 1813, the British physician William Heberden described a patient who "never went but once a month." He also described a patient who relieved himself 12 times a day. Both patients seemed perfectly content with their bowel habits.

The truth is that everyone experiences variations in how often they move their bowels. Menstruation, vigorous physical exercise, diet, travel, and stress can all cause temporary changes in bowel habits. Going a day without a bowel movement certainly shouldn't be considered constipation. And three movements in a day isn't necessarily diarrhea. More important than the number of bowel movements is the consistency of the stools as they pass, the effort needed to expel them, any associated symptoms, and changes in frequency.

Symptoms of functional constipation

  • At least two of the following during any 12 weeks over the past year:

  • straining during more than one-quarter of bowel movements

  • having lumpy or hard stools during more than one-quarter of bowel movements

  • having a sensation of incomplete evacuation in more than one-quarter of bowel movements

  • having a sensation that your rectum or anus is blocked during more than one-quarter of bowel movements

  • resorting to manual maneuvers such as using a finger to help facilitate movement during more than one-quarter of bowel movements

  • fewer than three defecations a week.

   Constipation: 3 of 8   


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Last updated: August 21, 2007

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