Post-Surgery Concerns: Managing Bowel Movements After Fistula Surgery - Surgery

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Post-anal fistula surgery


Hello doctor, I underwent fistula surgery on July 1st.
After being discharged, I have been taking stool softeners (once in the morning and once in the evening).
However, yesterday, July 3rd, I accidentally took the stool softener in the morning and again in the afternoon, which caused me to have frequent bowel movements throughout the day.
I have been taking sitz baths, and as a result, I decided to stop the stool softeners last night and this morning.
However, since yesterday afternoon, I still feel the urge to have a bowel movement even after I go, and I have been passing gas frequently.
Is this a normal situation? What can I do to resolve this?

MG, 20~29 year old female. Ask Date: 2023/07/04

Dr. Zhang Shuhao reply Surgery


After surgery, the wound may experience swelling and a foreign body sensation, which can sometimes be mistaken for the urge to defecate.
It is important not to strain on the toilet to avoid affecting the wound.
Instead, you can take warm sitz baths and increase your fluid intake to prevent constipation.
If there are no significant discomforts, you can return for a follow-up appointment as scheduled.

Reply Date: 2023/07/04

More Info


After undergoing fistula surgery, it is common to experience changes in bowel habits and sensations, including persistent urges to defecate and increased flatulence. These symptoms can be attributed to several factors, including the effects of anesthesia, the healing process of the surgical site, and the use of stool softeners.

Firstly, it's important to understand that after any surgical procedure involving the anal region, such as fistula surgery, the body goes through a healing phase. During this time, the anal sphincter and surrounding tissues may be sensitive and reactive, leading to sensations of urgency or discomfort. The use of stool softeners, while beneficial for preventing straining during bowel movements, can sometimes lead to over-softening of the stool, resulting in more frequent trips to the bathroom.

In your case, since you inadvertently took the stool softener twice in one day, it is possible that this has contributed to the increased frequency of bowel movements and the sensation of incomplete evacuation. When stool is too soft, it can lead to a feeling of urgency and the need to go to the bathroom more often, even if the bowel is not full. This can also cause increased gas production, leading to more flatulence.

Here are some recommendations to help manage your symptoms:
1. Monitor Your Diet: Pay attention to your diet and consider incorporating more fiber gradually. Foods rich in fiber can help regulate bowel movements and improve stool consistency. However, be cautious with high-fiber foods if you are experiencing diarrhea or loose stools, as they can exacerbate the issue.

2. Hydration: Ensure you are drinking plenty of water. Staying hydrated is essential for digestive health and can help prevent constipation, which is particularly important after surgery.

3. Stool Softener Use: Since you have stopped taking the stool softener, monitor your bowel movements over the next few days. If you find that you are experiencing constipation or straining, you may need to reintroduce a stool softener but at a lower dose or frequency. Always consult your physician before making changes to your medication regimen.

4. Sitz Baths: Continue with sitz baths as they can provide relief and promote healing in the anal area. Warm water can help soothe discomfort and may assist in relaxing the anal sphincter, which can reduce the sensation of urgency.

5. Consult Your Surgeon: If the sensation of needing to defecate persists or worsens, it is crucial to follow up with your surgeon or a gastroenterologist. They can assess whether there are any underlying issues related to the surgery or if further intervention is needed.

6. Pelvic Floor Exercises: Engaging in pelvic floor exercises may help strengthen the muscles around the anus and improve control over bowel movements. However, consult with a healthcare provider or a physical therapist specializing in pelvic health for guidance on appropriate exercises.

7. Avoid Straining: It is essential to avoid straining during bowel movements, as this can put pressure on the surgical site and potentially lead to complications. If you feel the urge to go, try to respond promptly to avoid discomfort.

In summary, while experiencing persistent urges to defecate and increased flatulence after fistula surgery can be concerning, it is often a temporary issue related to the healing process and dietary factors. By monitoring your diet, staying hydrated, and consulting with your healthcare provider, you can manage these symptoms effectively. If the situation does not improve or if you have any concerns, do not hesitate to seek medical advice.

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