Đến gặp bác sĩ. Tiến hành phẫu thuật. Thận trọng nếu đường rò ở gần thực quản. Tái khám. Trao đổi với bác sĩ  về việc sử dụng thuốc kháng sinh.

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Diagnosis is by visual examination. A sigmoidoscopy must always follow the visual examination to rule out Crohn's disease, cancer, and other serious conditions. However, to know the ins and outs of your case, your doctor may conduct 1 or more of the following tests, too:   Computerized Tomography (CT scan). Especially in patients with Crohn’s disease, a CT scan indicates the inflammatory stage before the possible formation of a fistula, in addition to showing the cavities of abscess to determine if surgical care is needed.  Magnetic Resonance Imaging (MRI). This a helpful method to determine any enteric fistulas by revealing any inflammatory changes or accumulation of fluids in the fistula tube.  Fistulography. This is an X-ray method in which a contrast media is injected at the external site of a fistula to clarify the fistula path and how deep it is through the tissues which will help in choosing the treatment.  Ultrasonography. This combined with physical examination can be used to identify any presence of abscess or fluid accumulation that may reside in the fistula tube.  Cystoscopy. This is useful for the “enterovesical fistula” that connects the intestine with the bladder.  Microbiological tests. To indicate any sign of infection, especially in the presence of abscess, a urine culture may be required in case of colovesical fistulas. The most common treatment of fistulas is surgical care, which is called “fistulotomy." This process will remove the fistula and any pus or fluid gathering in it. Fistulotomy is effective in more than 85% of cases.  In fistulotomy for rectal fistulas, a procedure called endorectal flap will be used. This is where the surrounding healthy tissues get put inside the fistula cavity to ensure the prevention of its blockage by feces in case of a recurrent infection. A seton stitch (passing a cord into the fistula in order to keep it closed during the drainage) is also reported to be used in fistulotomy. This, however, usually takes multiple visits to your doctor until recovery and...