Anal Fistulas: Seeking a Second Opinion Before Surgery - Surgery

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Anal fistula


Hello, Dr.
Ke: A few days ago, I was diagnosed with an anal fistula at the hospital and was informed that I would need surgery and a 5-day hospitalization.
However, I have some questions that have not been answered, and because my father was misdiagnosed in the past and it was later found not to be an anal fistula, my family hopes I can seek additional professional opinions from different doctors (I have not been admitted yet).
My concerns are that I have never had a fever or any symptoms resembling a fever, and there has been no bleeding or discharge from the affected area.
The doctor performed a physical examination and mentioned that there is no internal opening, only two external openings that are connected.
However, I feel that one of them has only recently developed and seems more like a result of friction from walking (it has only been a few days, as I have documented the process with photos on my phone).
Can this be definitively diagnosed as an anal fistula? I apologize for questioning the expertise of the doctor who examined me, but I truly need a second expert opinion.

Xiao Ye, 30~39 year old female. Ask Date: 2019/04/13

Dr. Ke Fangxu reply Surgery


Answer: I cannot provide a definitive answer without a personal examination.
However, since there is no pain, bleeding, fever, or discharge, what is the reason for your visit? Is it possible that there is a fistula? In addition to a digital rectal exam, larger hospitals may offer fistulography.
You can ask your physician if this examination is available.

Reply Date: 2019/04/13

More Info


Understanding anal fistulas can be quite complex, especially when considering the need for surgical intervention. It’s completely reasonable to seek a second opinion, particularly given your family history of misdiagnosis. Let’s break down your concerns and the condition itself.

An anal fistula is an abnormal connection between the anal canal and the skin surrounding the anus. It often results from an infection in the anal glands that leads to the formation of an abscess. The symptoms typically include pain, swelling, and sometimes discharge of pus or blood. However, it’s important to note that not all anal fistulas present with these classic symptoms, and some may be asymptomatic or present with mild discomfort.

In your case, you mentioned that you have not experienced fever or any significant discharge, which can sometimes lead to uncertainty about the diagnosis. The absence of fever and significant drainage could suggest that the condition is not acute or that there is no active infection. The fact that your physician noted two external openings without an internal opening is also noteworthy. This could indicate a specific type of fistula, known as an intersphincteric fistula, which may not always require immediate surgical intervention, especially if it is not causing significant symptoms.

It’s also worth considering the possibility that what you are experiencing could be related to other conditions, such as skin irritation or a minor tear, especially if you feel that one of the openings is a recent development due to friction. This is why a thorough evaluation is essential.
When seeking a second opinion, it’s crucial to provide the new physician with all relevant information, including your symptoms, any changes you’ve noticed, and your medical history. They may recommend imaging studies, such as an MRI or an endoanal ultrasound, to better visualize the fistula and its relationship to surrounding structures. These tests can help confirm the diagnosis and determine the most appropriate treatment plan.

Surgical treatment for anal fistulas typically involves a procedure to cut open the fistula tract, allowing it to heal from the inside out. This is often effective but can carry risks, including incontinence or recurrence of the fistula. Therefore, understanding the specifics of your case is vital before proceeding with surgery.

In summary, while your current physician may have diagnosed an anal fistula, your lack of typical symptoms warrants further investigation. Seeking a second opinion is a prudent step, especially given your concerns and family history. A different perspective may provide additional insights or alternative treatment options that could be less invasive or more suited to your situation. Always remember that you have the right to seek clarity and comfort regarding your health decisions.

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