What is the biggest benefit of thread-hanging therapy in treating anal fistula?

The biggest advantage of thread-drawing therapy in treating anal fistula is that it will not cause anal incontinence. Because the blood supply disorder, necrosis and disconnection of the ligated muscle tissue is a slow process, fibrosis caused by inflammatory reaction at this time can make the severed muscle adhere to the surrounding tissues, and the muscle will gradually heal without contracting too much. Therefore, the cut anorectal ring will not retract and anal incontinence will not appear.