What causes constipation in pregnancy?

Updated: Mar 30, 2020
  • Author: Marc D Basson, MD, PhD, MBA, FACS; Chief Editor: BS Anand, MD  more...
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Pregnant women are frequently constipated because of dietary alterations, anatomic impingement of a large uterus on the rectosigmoid, fluid shifts, decreased exercise levels, and reduced mobility. Typically, these women develop hemorrhoids from passive venous congestion and uterine impingement. Pregnancy-related constipation potentiates the development of symptomatic hemorrhoids, and the resolution of constipation is the only available antihemorrhoidal therapy during pregnancy.

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