Anal fistula is a medical condition where in a tunnel like passage forms inside the anus. It starts from inside the anus and ends somewhere on the skin outside the anus. There are different types of fistula depending on where they are formed.
Pain, itching, constant discharge in the perianal region for many months usually denotes a perianal fistula. When a patient presents with a fistulous opening to the clinic, the doctor after taking a thorough history does a physical exam…