Definition
Several definitions have been offered:
- "Absence of normal relaxation of pelvic floor muscles during defecation, resulting in rectal outlet obstruction".
- "Malfunction (a focal dystonia) of the external anal sphincter and puborectalis muscle during defecation".
- " failure of muscle to relax, resulting in maintenance of the anorectal angle and the difficulty with initiating and completing bowel movements".
- " failure of relaxation (or paradoxic contraction) of the puborectalis muscle sling during defaecation, attempted defaecation or straining."
Read more about this topic: Anismus
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