Anal fistula (also known as anal fistula) is the second most common anorectal disease after hemorrhoids. Although it is not life-threatening, it causes a lot of inconvenience in life, affecting labor productivity and quality of life.

Anal fistula is the second most common disease after hemorrhoids among diseases of the anorectal region, which can cause many inconveniences, affecting daily activities, psychology, labor productivity and quality of life of the patient. Therefore, it is necessary to diagnose early and treat this disease promptly.