How to distinguish between anal fissures and hemorrhoids

Written by Yu Xu Chao
Colorectal Surgery
Updated on December 19, 2024
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To distinguish between anal fissures and hemorrhoids, one can first differentiate based on symptoms. Anal fissures primarily cause pain during defecation and minor bleeding, with the pain typically lasting from 20 minutes to half an hour. Patients often have hard stools or constipation. In contrast, hemorrhoids primarily lead to intermittent painless rectal bleeding. The blood is bright red and usually in greater volume, often appearing in a spraying or dripping pattern after defecation. Some patients may also experience prolapsed hemorrhoids, often accompanied by a sensation of heaviness and foreign body in the anus. Further, through a digital rectal examination, an anal fissure can be identified by a palpable ulcer or crack at the posterior or anterior midline of the anus. Hemorrhoids, being soft venous clusters, can also be differentiated through this examination.

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Written by Wang Hui Jie
Gastroenterology
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What should I do about rectal bleeding from an anal fissure?

Firstly, if rectal bleeding occurs before a doctor's diagnosis, it is imperative to seek medical attention promptly to rule out other conditions. The cause of the bleeding could be from a site above the anus or other diseases related to the anus, and it might not necessarily be an anal fissure. If diagnosed with an anal fissure, treatment generally involves the local application of ointment. It is important to avoid conditions in daily life that could lead to constipation or diarrhea, as these can irritate the mucous membrane of the anus and exacerbate the symptoms of an anal fissure. Dietarily, it is beneficial to eat more vegetables, fruits, and foods high in rough fiber to ensure that stools are well-formed. If anal fissures recur, do not avoid seeking medical help, as this could lead to the formation of scars and contractions around the anus, causing anal stenosis, at which point surgery would be necessary.

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Written by Li Xiao Jie
Internal Medicine
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Can anal fissures be cured completely?

Anal fissures are a curable condition, so do not worry. Anal fissures are relatively common in clinical practice and are a frequently occurring disease. Fresh anal fissures, which are of short duration and have small fissures, can be treated and cured using methods such as fumigation, oral medications, or rectal insertion. For older, chronic anal fissures, surgical treatment can be administered, including methods like the Milligan-Morgan technique or fissurectomy, all of which can achieve a cure. However, anal fissures are related to lifestyle and dietary habits, so even after healing, it is important to be cautious of various triggering factors to prevent recurrence.

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Written by Chen Tian Jing
Colorectal Surgery
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Anal fissure bleeding symptoms

The most common clinical symptoms of anal fissure, apart from the intense tearing pain in the anal area, include bleeding during bowel movements. The bleeding from anal fissures is typically bright red, and the amount of blood can increase with the severity of the condition due to repeated stretching of the fissure. Particularly during acute episodes of anal fissures or after defecation, bleeding from the local fissure can be more significant. Patients with bleeding anal fissures generally have a history of dry stools, so the first step in treating anal fissure bleeding is to lubricate the stool. Additionally, topical medications should be applied to the bleeding fissure to promote healing, and hemorrhoid creams with hemostatic properties can be used locally to help stop the bleeding. (Please use medications under the guidance of a professional physician, and do not self-medicate.)

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Written by Li Xiao Jie
Internal Medicine
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What should not be eaten with anal fissure?

Patients with anal fissures should be cautious with their diet, avoiding spicy and irritating foods to prevent exacerbation. They should also consume foods rich in roughage, such as cornmeal, sweet potatoes, celery, leeks, and cabbage, which can facilitate bowel movements and prevent the aggravation of anal fissures due to dry stools. Additionally, alcohol should be avoided as it may dilate blood vessels and lead to increased bleeding. It is essential for patients with anal fissures to maintain smooth bowel movements and avoid sitting or squatting for extended periods.

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Written by Li Xiao Jie
Internal Medicine
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What is the best treatment for anal fissures?

The treatment of anal fissures depends on the specific situation. For initial onset anal fissures, since the fissure is small, treatment can be achieved through methods such as Chinese herbal fumigation or topical application of medicine. For recurrent anal fissures that have persisted for a longer time, fumigation and washing with medicine are less effective. In such cases, surgical treatment is necessary, and it should be sought at the proctology department of a formal hospital. Anal fissures are greatly related to bowel habits, so it is important to maintain smooth bowel movements by, for example, drinking more water, eating more high-fiber foods, consuming less spicy and stimulating foods, abstaining from alcohol, and avoiding greasy foods.