Disease or Syndrome
anal fissure
a·nal fis·sure [ eyn-l fish-er ]
Subclass of:
Anus Diseases
Also called:
Anal Ulcer
Definitions related to anal fissure:
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A small tear in the thin, moist tissue (mucosa) that lines the anus. It appears as a crack or slit in the mucous membrane of the anus.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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(fissure in ano) A painful linear tear at the margin of the anus. It appears as a crack or slit in the mucous membrane of the anus and is very painful and difficult to heal.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A disorder characterized by a tear in the lining of the anus.Common Terminology Criteria for Adverse EventsU.S. National Institutes of Health, 2021
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An anal fissure is an acute longitudinal tear or a chronic ovoid ulcer in the squamous epithelium of the anal canal. It causes severe pain, sometimes with bleeding, particularly with defecation. Diagnosis is by inspection. Treatment is local hygiene, stool softeners, topical measures, and sometimes botulinum toxin injection and/or a...Merck & Co., Inc., 2020
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An anal fissure (see the images below) is a painful linear tear or crack in the distal anal canal, which, in the short term, usually involves only the epithelium and, in the long term, involves the full thickness of the anal mucosa.For patient education resources, see the Digestive Disorders Center, as well as Anal Absce...WebMD, 2019
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An anal fissure is a small tear in the thin, moist tissue (mucosa) that lines the anus. An anal fissure may occur when you pass hard or large stools during a bowel movement. Anal fissures typically cause pain and bleeding with bowel movements. You also may experience spasms in the ring of muscle at the end of your anus (anal sphincter).Mayo Foundation for Medical Education and Research
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Anal fissure is a split in the skin of the distal anal canal characterized by pain on defecation and rectal bleeding. It is a common condition in young to middle-aged adults and may occur in 1 in 350 people in the European Union. It is the second commonest gastrointestinal complication of pregnancy after hemorrhoids. The pain is...Athenahealth, Inc., 2019
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