Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D006484
http://purl.bioontology.org/ontology/MESH/D006484
Preferred Name

Hemorrhoids

Definitions
Swollen veins in the lower part of the RECTUM or ANUS. Hemorrhoids can be inside the anus (internal), under the skin around the anus (external), or protruding from inside to outside of the anus. People with hemorrhoids may or may not exhibit symptoms which include bleeding, itching, and pain.
Synonyms
Hemorrhoid
Type http://www.w3.org/2002/07/owl#Class
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