If minimally invasive surgery is available, minimally invasive surgery is definitely better compared to traditional surgery. Most of the minimally invasive surgery is done with bioprotein gel or fistula plugs, which are generally less invasive and less painful on the outside of the anus, and the patient feels very good after the surgery. However, the requirements before using minimally invasive surgery are high, usually if the fistula is not acutely infected, usually in the non-acute phase or after a period of antibiotic treatment, and the inflammation at the fistula is relatively mild. The fistula should be cleaned out repeatedly before it is used, and then filled with bioprotein gel, or with an anal fistula plug, etc. Of course, there is a possibility of recurrence after surgery. Traditional treatments are relatively complete and usually include fistulotomy, fistulotomy or fistula stitching. After the surgery, there will be a wound around the anus, which is usually painful for the patient, and the wound may take longer to heal, possibly 2-3 weeks or even a month or so.