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Page: Causes
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Most anal fissures are caused by stretching of the anal mucosa beyond its capability. Various causes of this fissure include:
* Straining to defecate, especially if the stool is hard and dry
* Severe and chronic constipation
* Severe and chronic diarrhea
* Crohn's disease and Ulcerative colitis
* Tight sphincter muscles
Many acute anal fissures will heal spontaneously. Some fissures become chronic and will not heal. The most common cause for this is spasm of the internal anal sphincter muscle. This spasm causes poor blood flow to the anal mucosa, hence producing an ulcer which does not heal since it is deprived of normal blood supply.
Anal fissures are common in women after childbirth, and following constipation in infants.
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Important notice:
The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other
qualified health provider with any questions you may have regarding a medical condition.
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