Post-Sigmoidoscopy Left Lower Abdominal Pain: Causes and Concerns

Dull pain in the lower left abdomen after anoscopy?

On August 26, I went to the hospital due to anal pain.
The doctor performed a sigmoidoscopy and concluded that there was no major issue, just some skin irritation.
However, during the procedure, it seemed to irritate my intestines, causing some pain.
After returning home that day, I started experiencing a dull pain in my lower left abdomen, which has persisted until today.
It is especially noticeable at night while sleeping.
Could the sigmoidoscopy have injured my intestines, or is it simply irritation that will resolve in a few days? Is there a possibility of a more serious condition? Recently, my bowel movements have been either mucous stools or unformed.
I had a colonoscopy at the age of 19 or 20 due to rectal bleeding, which showed normal results except for hemorrhoids.
Now, five or six years later, do I need to undergo another colonoscopy because of this persistent dull pain in my lower left abdomen? I am very concerned it might be something serious.
Thank you for your response, doctor.

YI, 20~29 year old female. Ask Date: 2022/08/29

Dr. Zhang Shuhao reply Surgery

In-office anal or rectal examinations rarely cause direct damage to the intestinal wall; most often, they result in mild inflammation or mucosal abrasions.
It is advisable to increase fluid intake, enhance the proportion of a liquid diet, and reduce vigorous activities.
If abdominal pain gradually alleviates, there is usually no cause for concern.
However, if sudden severe pain or fever occurs, it is important to seek medical attention promptly.

Reply Date: 2022/08/29

More Info

Post-sigmoidoscopy left lower abdominal pain can be concerning, especially when it persists after a procedure. Based on your description, it seems that the pain began after a sigmoidoscopy, which is a procedure used to examine the lower part of the colon. While it is common to experience some discomfort following such procedures, persistent pain warrants further evaluation.

Firstly, it is important to understand that during a sigmoidoscopy, the doctor inserts a flexible tube with a camera into the rectum and lower colon. This can sometimes lead to irritation or minor trauma to the intestinal lining, which may cause discomfort or pain. The fact that you experienced some pain during the procedure could indicate that there was some irritation or stretching of the bowel, which might explain the subsequent discomfort in your left lower abdomen.

The symptoms you describe, including the persistent dull pain and changes in your bowel movements (such as mucus in your stool), could be attributed to several factors. One possibility is that the procedure may have caused temporary inflammation or irritation in the bowel, which could take some time to resolve. In many cases, this type of discomfort will improve on its own within a few days to a week.

However, it is also essential to consider other potential causes of your symptoms. For instance, if the pain worsens or is accompanied by other symptoms such as fever, significant changes in bowel habits, or blood in the stool, it could indicate a more serious condition that requires further investigation. Conditions such as diverticulitis, inflammatory bowel disease (IBD), or even complications from the procedure itself (like perforation, though rare) should be ruled out.

Given your history of rectal bleeding and previous colonoscopy, it is understandable that you may be concerned about the possibility of a more severe underlying condition. While your previous colonoscopy was normal, it is important to note that symptoms can change over time, and new issues can arise. If your symptoms persist or worsen, it would be prudent to consult with your healthcare provider about the possibility of undergoing another colonoscopy or other imaging studies to ensure that there are no new developments.

In the meantime, here are some recommendations to manage your discomfort:
1. Dietary Adjustments: Consider a diet high in fiber to help regulate your bowel movements. This can alleviate some pressure on your intestines and may help with mucus production.

2. Hydration: Ensure you are drinking plenty of fluids, as this can help with digestion and prevent constipation.

3. Pain Management: Over-the-counter pain relievers may help alleviate discomfort, but consult your doctor before taking any medication.

4. Monitoring Symptoms: Keep track of any changes in your symptoms, including the nature of your pain, bowel habits, and any new symptoms that may arise.

5. Follow-Up: If the pain persists beyond a week or worsens, or if you experience any alarming symptoms, seek medical attention promptly.

In conclusion, while it is possible that your left lower abdominal pain is a result of irritation from the sigmoidoscopy, it is essential to remain vigilant and consult your healthcare provider if symptoms do not improve. They can provide a thorough evaluation and determine if further diagnostic testing is necessary to rule out any serious conditions. Your health and peace of mind are paramount, so do not hesitate to seek further medical advice if needed.

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