Fistula surgery is surgery to remove the path of a channel or abnormal connection between an organ, vessel, or intestine and another structure. Fistula can occur in many parts of the body and usually the result of injury or surgery. There are different types of fistulas (blind, complete, incomplete, horseshoe) according to their type and require one kind or another intervention. Fistula operation can be approached with different techniques (cold, electrical or laser scalpel) and may include both fistulotomy (incision in the path of the fistula to the tissues heal from the inside out) as a fistulectomy (removal of the fistula tract) or marsupialization (close the channel forming a bag). In certain cases, you choose to seal the fistula with biological glues or plugs. Furthermore, the placement of special drains (seton) may be necessary, as in the case of an operation of perianal fistula, abscess associated. On occasion the only existing solution to a fistula may be the ultimate placement of a seton (drainage). Most fistulas respond well to surgical treatment but in some cases perianal fistula surgery can leave sequels such as incontinence.