Diagnosis and treatment
In case you have persistent symptoms, you need to see a GP. He might do a physical examination of your anal area. They may also gently insert a finger in the anal area to determine its depth and direction of progress. In case of invisible fistulae, he may suggest diagnostic tests like anoscopy, MRI/ CT scan, and colonoscopy in case of crohn’s disease. As they rarely heal by themselves, surgery might be necessary in most cases.