{"id":3351,"date":"2023-12-16T07:51:39","date_gmt":"2023-12-16T07:51:39","guid":{"rendered":"http:\/\/drhimanshuyadav.com\/anal-sphincter-function-anatomy-and-complications\/"},"modified":"2023-12-16T07:51:39","modified_gmt":"2023-12-16T07:51:39","slug":"anal-sphincter-function-anatomy-and-complications","status":"publish","type":"post","link":"https:\/\/drhimanshuyadav.com\/blog\/anal-sphincter-function-anatomy-and-complications\/","title":{"rendered":"Anal sphincter function, anatomy, and complications"},"content":{"rendered":"
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The anal sphincter is a group of muscles at the end of the rectum. The rectum is located in the last few inches of the large intestine (colon). The anal sphincter surrounds the anus and controls the release of stool, thereby maintaining incontinence. He has two muscles: the internal anal sphincter and the external anal sphincter.\n<\/p>\n

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If you have trouble holding in your stool or urine (or leak), have pain in your rectum, or experience pain during sex, your anal sphincter may be damaged.\n<\/p>\n

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This article describes the anatomy of the anal sphincter and its functions. You will also learn about symptoms that affect the anal sphincter and what can happen if the anal sphincter is injured.\n<\/p>\n

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Dorling Kindersley\/Getty Images<\/p>\n

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Anatomy of the anal sphincter <\/span> <\/h2>\n

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The average adult rectum length is about 4.7 inches. At the bottom of the rectum is the anal sphincter.\n<\/p>\n

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The anal sphincter is two muscles.\n<\/p>\n

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  • Internal anal sphincter: <\/strong>This is located inside the rectum.<\/li>\n
  • External anal sphincter: <\/strong>It goes around the outside of the end of the anal canal.<\/li>\n<\/ul>\n

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    of pudendal nerve<\/span> It is the main nerve in the pelvis. It tells the muscles that control the pelvic organs and reproductive organs to move.\n<\/p>\n

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    One of the nerves’ jobs is to send messages to the branches to close the anal sphincter and prevent stool and urine from leaking.this is called anal sphincter innervation<\/span>.\n<\/p>\n

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    Function of the anal sphincter <\/span> <\/h2>\n

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    of anal sphincter reflex<\/strong> This is the process that occurs when stool moving through the digestive tract relaxes the internal anal sphincter, which in turn causes the external anal sphincter to contract. This reaction is also called the defecation reflex.\n<\/p>\n

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    The internal and external anal sphincters work together to cause defecation, but in different ways.\n<\/p>\n

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    Loss of muscle control of the sphincter can result in fecal incontinence.\n<\/p>\n

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    \nexternal anal sphincter<\/span><\/p>\n
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      thick muscles<\/p>\n<\/li>\n

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      Being able to voluntarily clench or not clench (e.g., hold a bowel movement until going to the bathroom)<\/p>\n<\/li>\n

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      When consciously activated, stool is expelled from the body.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n

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      diseases and symptoms <\/span> <\/h2>\n

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      There are several diseases, conditions, and injuries that can affect the anal sphincter. Symptoms for these conditions can vary, but in general, signs that you may have a problem with your anal sphincter include:\n<\/p>\n

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      • pain and bleeding from the anus<\/li>\n
      • Problems with bowel and gas control<\/li>\n
      • Feeling of urgency to defecate<\/li>\n
      • anal secretions<\/li>\n<\/ul>\n

        anal stenosis <\/span> <\/h3>\n

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        Although anal stenosis is not a common symptom, it may be associated with inflammatory bowel disease (IBD). It is more common in Crohn’s disease than ulcerative colitis.\n<\/p>\n

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        In anal stenosis, the internal anal sphincter becomes narrow, making it difficult to defecate. Other symptoms include pain and bleeding.\n<\/p>\n

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        Anal stenosis can occur after surgery, especially after removal of hemorrhoids, or in association with overuse of laxatives or infection.\n<\/p>\n

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        This condition may be treated with stool softeners and fiber supplements. Surgery may also be required to correct the problem.\n<\/p>\n

        anismus <\/span> <\/h3>\n

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        Anismus is a dysfunction of the pelvic floor muscles, including the external anal sphincter. This is caused by a problem with the way these muscles contract and relax during a bowel movement.\n<\/p>\n

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        Symptoms of anismus include:\n<\/p>\n