Post-Surgery Discharge After Fistula Surgery: What to Expect - Surgery

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Fistula surgery


Hello, doctor.
I had a fistula surgery last week, and since then, I've been taking sitz baths at least three times a day.
I've been using sanitary pads, but each time I change them, I notice a small amount of blood and a yellowish fluid on the pad.
The fluid has an odor and feels sticky and smelly.
I'm not sure if this fluid is feces, tissue fluid, or pus.
The doctor mentioned that I have a complex fistula; is this normal? Also, is it okay to only use wet wipes to clean myself after a bowel movement?

Mr. Chen, 20~29 year old female. Ask Date: 2018/07/02

Dr. Ke Fangxu reply Surgery


The surgical wound from an anal fistula typically takes about one month to heal.
If it is a complex fistula, the healing time may be longer.
It is normal to have discharge during this period, as long as there are no signs of redness, swelling, heat, or pain.
Cleaning the surgical wound can be challenging; it is best to use a bidet or take warm sitz baths for hygiene.
Using wet wipes may not provide adequate cleaning.

Reply Date: 2018/07/02

More Info


After undergoing fistula surgery, it's common to have concerns about postoperative discharge and what to expect during the healing process. Based on your description, it sounds like you are experiencing some typical symptoms associated with recovery from a complex fistula surgery.

Firstly, the presence of a yellowish, sticky discharge that has an odor can be concerning, but it is not uncommon after such procedures. This discharge could be a combination of several factors:
1. Serous Fluid: This is a clear or slightly yellow fluid that can accumulate at the surgical site as part of the healing process. It is normal for wounds to produce some fluid as they heal.

2. Blood: The presence of blood in the discharge, especially if it's minimal, can be expected in the days following surgery. However, if the bleeding becomes more pronounced or if you notice significant changes in the color or amount of discharge, it would be wise to consult your surgeon.

3. Infection: The foul odor you describe could indicate an infection, especially if accompanied by increased pain, swelling, or fever. Infections can occur post-surgery, particularly in complex cases like fistulas. If you suspect an infection, it's crucial to reach out to your healthcare provider promptly.

Regarding your question about using wet wipes after bowel movements, this is generally acceptable as long as you are gentle and avoid any harsh or irritating substances. Keeping the area clean is essential for preventing infection and promoting healing. However, it is advisable to continue with sitz baths as they can help soothe the area and promote cleanliness. Sitz baths can also help in reducing discomfort and facilitating healing by keeping the area moist and clean.

In terms of what to expect moving forward, here are some general guidelines:
- Discharge Duration: It is normal to have some discharge for a few weeks post-surgery. The amount and nature of the discharge should gradually decrease as healing progresses.

- Follow-Up Appointments: Ensure you attend all scheduled follow-up appointments with your surgeon. They will monitor your healing and can address any concerns about discharge or signs of infection.

- Signs to Watch For: Be vigilant for signs of infection, such as increased redness, swelling, warmth around the surgical site, persistent or worsening pain, or fever. If you experience any of these symptoms, contact your healthcare provider immediately.

- Hygiene Practices: Continue with your sitz baths and maintain good hygiene. If you find that wet wipes are irritating, consider using soft toilet paper or a gentle cleansing solution recommended by your doctor.

- Activity Level: Avoid strenuous activities and heavy lifting until your doctor gives you the green light. Rest is crucial for recovery.

In summary, while some discharge is normal after fistula surgery, the characteristics of that discharge can provide important clues about your healing process. If you have any doubts or if your symptoms change, do not hesitate to reach out to your healthcare provider for guidance. They are best equipped to assess your situation and provide personalized advice based on your specific circumstances.

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