Anal Fistulas: Symptoms, Treatment, and Concerns - Surgery

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Anal fistula/abscess


Hello, doctor.
My mother developed a hard lump near her anus about two to three months ago, which was about the size of an acne pimple and was not painful.
Over time, the lump grew larger and became softer, with the surface appearing shiny.
Light pressure did not cause pain, but applying more pressure caused some discomfort.
On March 15, she visited a surgeon, who diagnosed her with an anal fistula, and surgery was performed the next day.
Currently, she is following the doctor's advice to take warm sitz baths daily and apply ointment.
The wound is still oozing a small amount of light-colored blood.
She was prescribed a hemostatic and anti-inflammatory medication to take home, but it causes her nausea and vomiting.
I have checked and confirmed that these are side effects.
I would like to ask the doctor if it is necessary to continue taking the anti-inflammatory and hemostatic medication given the light oozing of blood.
If she stops taking it, will the wound healing process be significantly delayed?
Additionally, my mother is very concerned about the relationship between anal fistulas and cancer.
Is there a significant connection between the two? Generally, when tissue is removed during surgery, is it sent for pathological examination, and what is the likelihood that it could be malignant? I kindly request your professional insights on these matters.
Thank you.

laindy, 30~39 year old female. Ask Date: 2011/03/21

Dr. Ke Fangxu reply Surgery


Hello: In response to your question, it is normal to have slight blood-tinged drainage from the wound after anal fistula surgery, as long as there is no redness, swelling, or severe pain.
It is not necessary to take anti-inflammatory or pain relief medication, but if you experience constipation, it is essential to take a stool softener to avoid painful bowel movements.
Anal fistulas and cancer are entirely different issues, so please do not worry.
The tissue that was removed during surgery will be sent for pathological examination, and it is likely that there are no abnormalities, which is why the doctor did not provide further explanation.
If you are concerned, feel free to ask the doctor during your follow-up appointment.

Reply Date: 2011/03/21

More Info


Understanding anal fistulas is crucial for both patients and caregivers, especially when it comes to recognizing symptoms, treatment options, and addressing concerns about potential complications. An anal fistula is an abnormal connection between the anal canal and the skin surrounding the anus. It often arises from an infection in the anal glands, leading to the formation of an abscess.

Symptoms of Anal Fistulas
The symptoms of an anal fistula can vary, but they commonly include:
1. Pain or Discomfort: While some patients may not experience pain, others might feel discomfort, especially when pressure is applied.

2. Swelling or Hard Lumps: Patients may notice a lump near the anus, which can change in size and texture over time.

3. Discharge: There may be pus or blood discharge from the opening of the fistula, which can be intermittent or continuous.

4. Itching or Irritation: The area around the anus may become irritated or itchy due to discharge or inflammation.

In your mother's case, the initial hard lump that evolved into a softer, shiny area, along with the presence of blood-tinged fluid, aligns with typical symptoms of an anal fistula.


Treatment Options
The primary treatment for an anal fistula is surgical intervention. The surgery aims to remove the fistula while preserving the surrounding sphincter muscles to maintain bowel control. Post-operative care is essential and typically includes:
- Sitz Baths: Soaking in warm water can help soothe the area and promote healing.

- Topical Medications: These may include antiseptics or pain relief ointments.

- Oral Medications: Antibiotics or anti-inflammatory medications may be prescribed to prevent infection and manage pain.


Concerns Regarding Medication
Regarding your mother's experience with nausea and vomiting from the prescribed anti-inflammatory medication, it is essential to communicate these side effects to her healthcare provider. If the medication is causing significant discomfort, the doctor may consider adjusting the dosage or prescribing an alternative medication.
As for the bleeding, a small amount of light-colored blood can be normal during the healing process. However, if the bleeding persists or worsens, it is crucial to consult the physician. The decision to continue or discontinue medication should be made in consultation with the healthcare provider, who can assess the wound's healing progress and determine the best course of action.


Cancer Concerns
Your mother's worry about the relationship between anal fistulas and cancer is understandable. While anal fistulas themselves are not cancerous, there is a potential association between chronic anal fistulas and certain types of cancer, particularly if they are linked to inflammatory bowel diseases or other underlying conditions.
Typically, during surgery, the tissue removed from the fistula may be sent for pathological examination to rule out malignancy. The likelihood of finding cancer in a fistula is low, especially in the absence of other risk factors, but it is a standard practice to ensure patient safety.


Conclusion
In summary, anal fistulas can present with various symptoms, and surgical treatment is often necessary. Post-operative care, including medication management, is crucial for recovery. If side effects from medications arise, they should be discussed with the healthcare provider to find suitable alternatives. Lastly, while concerns about cancer are valid, the risk is generally low, and any tissue removed during surgery will likely be examined for peace of mind. Regular follow-ups with the healthcare provider will help ensure that your mother’s recovery is on track and that any concerns are addressed promptly.

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