Why is pus coming out of the wound after anal fistula surgery?

Q. After surgery for anal fistula, pus is coming out of the wound. What to do?

Answered by
Dr. Ajeet Kumar
and medically reviewed by Dr. Sneha Kannan
This is a premium question & answer published on Jun 17, 2020 and last reviewed on: Aug 13, 2023

Hi doctor,

I have done kshala sutra treatment for fistula. But I am getting pus from the wound continuously for the past ten days. This surgery was done 15 days back. I got this issue six months back. At that time, it was cured temporarily. But for the last two months, I am having pus from the wound. I consulted a doctor. He told me it as a fistula. I have done surgery for it. But I have pus coming from my wound continuously. Is there anything wrong?



Welcome to icliniq.com.

You have pus. But your large part of the wound is healthy and pink (attachment removed to protect patient identity). It is common to have pus for few days after undergoing surgery. You are taking the right treatment. You can take Amoxicillin tablet twice a day after food. It is an antibiotic. You can use a gauze piece for wiping down the pus coming out. Pus can become dry after few days. You can take Metronidazole 400 mg (anit-anerobic) thrice daily for seven days to fasten the healing. Please mention whether you have any other abdominal symptoms such as abdominal pain, diarrhea, vomiting, or unusual weight loss. It is important to know whether you have any other problems in the bowel along with it.

The Probable causes:

You have an operated anal fistula.

Investigations to be done:

Do stool test for fecal calprotectin and stool detail report. A thorough pertinent history is necessary before giving more targeted investigations.

Treatment plan:

Follow as mentioned above.

Regarding follow up:

Follow the treatment as mentioned above. Have a follow-up at any time.

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