Anus: An opening in the rectum that allows stool to move out of the body (bowel movement). Common problems with the anus are hemorrhoids, abscesses, and fissures (cracks), and cancer.


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Anus adverse event: A digestive system adverse event that occurs at anus2

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  1. Source: RDCRN (NCATS/NIH): cms/ cegir/ Learn-More/ Glossary
  2. Source: OAE Ontology

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