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What causes a hiatal hernia?

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Most of the time, the cause of a hiatal hernia remains unknown. A person may be born with a larger hiatal opening. Increased pressure in the abdomen such as from pregnancy, obesity, coughing, or straining during bowel movements may also play a role.

From: Hiatal Hernia WebMD Medical Reference

SOURCES: 

National Institute of Diabetes and Digestive and Kidney Diseases.

National Institutes of Health.

Merck .

Reviewed by Carol DerSarkissian on August 7, 2019

SOURCES: 

National Institute of Diabetes and Digestive and Kidney Diseases.

National Institutes of Health.

Merck .

Reviewed by Carol DerSarkissian on August 7, 2019

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Who is likeliest to get a hiatal hernia?

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