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How does fiber help with anal fissures, and what are foods that contain high amounts of fiber?

ANSWER

f you're constipated, passing large, hard, or dry stools can cause an anal fissure. To help prevent constipation, get 20 to 35 grams of fiber per day and drink plenty of fluids. Fiber-rich foods include:

If you can’t get enough fiber through your diet, try fiber supplements.

  • Wheat bran
  • Oat bran
  • Whole grains, including brown rice, oatmeal, popcorn, and whole-grain pastas, cereals, and breads
  • Peas and beans
  • Seeds and nuts
  • Citrus fruits
  • Prunes and prune juice

SOURCES:

Cleveland Clinic: "Anal Fissures."

UpToDate: "Patient information: Anal fissure (Beyond the Basics)," "Patient information: High-fiber diet (Beyond the Basics)," "Patient information: Constipation in Adults (Beyond the Basics)."  

NHS Choices: "Anal Fissure - Prevention," "Laxatives - Introduction."

American Heart Association: "Whole Grains and Fiber."

Harvard School of Public Health, The Nutrition Source: "Fiber: Start Roughing It!"

National Digestive Disease Information Clearinghouse (NDDIC): "Constipation."

University of Michigan Health System: "Bowel Function Anatomy."

Reviewed by Carol DerSarkissian on October 28, 2018

SOURCES:

Cleveland Clinic: "Anal Fissures."

UpToDate: "Patient information: Anal fissure (Beyond the Basics)," "Patient information: High-fiber diet (Beyond the Basics)," "Patient information: Constipation in Adults (Beyond the Basics)."  

NHS Choices: "Anal Fissure - Prevention," "Laxatives - Introduction."

American Heart Association: "Whole Grains and Fiber."

Harvard School of Public Health, The Nutrition Source: "Fiber: Start Roughing It!"

National Digestive Disease Information Clearinghouse (NDDIC): "Constipation."

University of Michigan Health System: "Bowel Function Anatomy."

Reviewed by Carol DerSarkissian on October 28, 2018

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How can staying hydrated help with anal fissures?

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