Causes of rectal prolapse

Written by Chen Tian Jing
Colorectal Surgery
Updated on September 26, 2024
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The causes of rectal prolapse primarily include older age or physical weakness leading to relaxation and sagging of the pelvic and rectal mucosa. Prolonged constipation can also lead to excessive straining during bowel movements, causing stress-induced sagging of the intestinal mucosa. Additionally, women who have gone through childbirth may experience rectal prolapse due to excessive straining of the pelvic floor muscles during delivery or increased abdominal pressure during pregnancy, which compresses the rectal mucosa. The treatment for rectal prolapse mainly consists of conservative medication or surgical removal. For mild cases of rectal prolapse, including those in children, traditional Chinese medicine enemas can be used. However, for moderate to severe cases, or cases where prolapse recurs frequently and significantly forms a complete prolapse, surgical removal is recommended.

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Written by Chen Tian Jing
Colorectal Surgery
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Can rectal prolapse cause stool deformity?

Rectal prolapse primarily refers to the excessive relaxation of the rectal mucosa. It may manifest as relaxation of the rectal mucosa due to the prolapse, and may also result in rectal prolapse. Patients with rectal prolapse may experience deformed stools, mainly because the prolapse overly crowds the anal opening, preventing feces from being normally expelled from the body. When feces are expelled through the anus, the local mucosal compression can cause the stools to appear in thin strips or in a flattened shape. Patients with rectal mucosal prolapse are advised to undergo examinations as soon as possible and actively receive treatment. Options include traditional Chinese medicine retention enemas, combined with oral qi-boosting medications. If the prolapse recurs, or has resulted in rectal prolapse, surgical treatment is recommended.

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Colorectal Surgery
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What tests should be done for rectal prolapse?

Rectal prolapse primarily refers to excessive laxity of the rectal mucosa within the anal canal. This lax mucosa accumulates at the anal opening, forming a clinical symptom. Patients may experience significant local swelling and a feeling of falling down. In severe cases or when the prolapse overly obstructs the anal opening, it might lead to difficulties in defecation and constipation. To diagnose rectal prolapse, an initial assessment typically involves a digital rectal examination and an anoscopy to simply and initially screen for the presence of mucosal prolapse. Further, a defecography might be required to ascertain the severity of the rectal prolapse. For mild rectal prolapse, topical medications can be used to alleviate symptoms. In cases of moderate or severe rectal prolapse, surgery is necessary to excise the lax mucosal loop.

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Colorectal Surgery
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Can you eat pork with rectal prolapse?

Patients with rectal prolapse can eat pork. Rectal prolapse is common in patients who have had chronic constipation or are physically weak. Therefore, to avoid constipation and excessive straining during bowel movements, it is recommended that patients with rectal prolapse maintain a diet that is light and bland. They should avoid spicy foods such as chili peppers and seafood, as well as foods that are hard in texture, to prevent stools from becoming too dry and necessitating excessive straining, which can worsen the prolapse or even lead to complete rectal prolapse. To prevent the recurrence of constipation or excessive straining during bowel movements, it is advisable to consume more liquid foods, as well as light vegetables and fruits. Moreover, if the condition frequently recurs or clearly leads to complete rectal prolapse, it is recommended that patients undergo surgical treatment as soon as possible.

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Colorectal Surgery
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Can glycerin suppositories be used for rectal prolapse?

If a patient experiences difficulty in defecation or constipation due to rectal prolapse, enemas can be used to help facilitate bowel movements. The basic principle behind the defecation difficulties caused by rectal prolapse is due to the prolapsed, lax mucosa blocking the anal opening, preventing normal excretion of stool. Alternatively, when excretion does occur, it may be impeded by the mucosal obstruction, obstructing the normal passage of feces. Therefore, besides using enemas to address difficulty in defection and bowel movement, it is more necessary to surgically remove the lax mucosa to achieve a fundamental treatment. The use of enemas alone can only provide temporary relief of symptoms and does not address the root cause of the problem. For rectal mucosal prolapse, a stapled hemorrhoidopexy can be performed to surgically remove the prolapsed mucosa.

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Colorectal Surgery
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Will rectal prolapse cause the stool to become thinner?

Patients with rectal prolapse may experience a narrowing of their stool, which is primarily due to the relaxation of the rectal mucosa associated with rectal prolapse. The relaxed mucosa accumulates at the anus, blocking the passage of feces and thus altering the shape of the stool as it is expelled, generally resulting in thinner or flattened stools. Therefore, if it is definitively diagnosed that the change in stool shape is due to rectal prolapse, surgical treatment is recommended. The surgery involves excising or suturing the excessively relaxed rectal mucosa to allow for a smoother passage of stool and to prevent alterations in stool shape. Additionally, it is important for patients to maintain good lifestyle and bowel habits post-surgery, spend minimal time defecating, and avoid prolonged squatting or straining actions.