How often should I have bowel movement?

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Not everyone has bowel movements every day. It’s not  true that you must have a daily bowel movement to be considered “Regular” 3
A normal range is anywhere between 3 times a day to 3 times a week. 3
You may be getting constipated if you start having bowel movements much less often than you usually do. 3

References:
3. Information from Your Family Doctor. Constipation. Am Fam Physician 2010; 82 (12): 1440-1441.