Recurrence Risks After Anal Fistula Surgery - Surgery

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Postoperative care for anal fistula surgery?


Hello, doctor.
During my follow-up appointment, the doctor said to just wait for the tissue to heal.
However, when I asked if there is a possibility of recurrence, the doctor mentioned that it could happen because the anal glands can regenerate.
I would like to know if the anal glands can indeed regenerate? Will they regenerate in the same location? Will the area where the fistula was surgically removed develop another fistula? Thank you, doctor.

Mr. Zheng, 30~39 year old female. Ask Date: 2023/04/17

Dr. Zhang Shuhao reply Surgery


The same location typically does not regenerate, so if the fistula incision site is cleaned out properly, it will not recur at the same site.
However, there are generally 6 to 8 glands around the anus, and inflammation of other glands may still lead to the formation of a fistula.

Reply Date: 2023/04/17

More Info


After anal fistula surgery, understanding the risks of recurrence is crucial for patients and their families. Anal fistulas are abnormal connections between the anal canal and the skin surrounding the anus, often resulting from an infection in the anal glands. Surgical intervention is typically necessary to promote healing and prevent further complications.

Recurrence of anal fistulas can occur, and it is essential to understand the factors contributing to this risk. One significant factor is the anatomy of the anal glands. The anal glands can indeed regenerate, and if the surgical procedure does not adequately address all affected glands or if there is residual infection, there is a possibility that a new fistula may develop in the same area. This is particularly true if the fistula is complex or if there are multiple tracts involved.

The surgical technique used can also influence recurrence rates. For instance, procedures such as fistulotomy, where the fistula tract is opened and allowed to heal from the inside out, have a lower recurrence rate compared to other methods like seton placement or advancement flap procedures. However, the choice of technique often depends on the complexity of the fistula and the surgeon's expertise.

In terms of healing, the area where the fistula was excised may develop scar tissue, which can sometimes lead to changes in the surrounding tissue. While the body is capable of healing, the formation of new tissue does not guarantee that the original problem will not recur. The risk of recurrence is generally higher in patients with underlying conditions such as Crohn's disease or those with a history of recurrent abscesses.

Patients often wonder if the area where the fistula was surgically treated can develop a new fistula. The answer is yes; it is possible for a new fistula to form in the same location, especially if the initial surgery did not completely eliminate the source of the problem. Regular follow-up appointments with a healthcare provider are essential to monitor for any signs of recurrence, such as pain, swelling, or discharge.

To minimize the risk of recurrence, it is vital to follow post-operative care instructions carefully. This includes maintaining proper hygiene, managing bowel movements to avoid straining, and attending all follow-up appointments. If any symptoms suggestive of recurrence arise, such as increased pain or unusual discharge, patients should seek medical attention promptly.

In conclusion, while anal fistula surgery can be effective in treating the condition, there is a possibility of recurrence due to the regenerative nature of the anal glands and the complexity of the fistula. Understanding these risks and maintaining open communication with healthcare providers can help manage expectations and ensure timely intervention if needed. Regular monitoring and adherence to post-operative care are crucial in reducing the likelihood of recurrence and promoting long-term healing.

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