Patient's question:
The other day, I had a bowel movement and pushed my anus out.Doctor's answer:
An anal fistula, also known as an "anal rectal fistula," is mostly formed when an anal rectal abscess ruptures or is incised to drain pus. The abscess gradually shrinks, but the intestinal contents continue to enter the abscess cavity. During the healing and shrinking process, tortuous channels often form, leading to poor drainage and difficulty in healing. Over time, numerous scar tissues accumulate around the channels, forming a chronic infectious tract. The most effective treatment for an anal fistula is the set-string method.