RESUMEN
Single incision laparoscopic surgery (SILS) has many advantages than standard multiport laparoscopic cholecystectomy (MLC),such as small trauma,less postoperative pain,shorter hospital stay,good cosmetic effect,and so on.Especially the satisfying cosmetic result of no abdominal scar is more important.But the SILS is also faced with many difficulties.The operation time of SILS were significantly longer in duration than MLC.The safety and the technical feasibility were lower for the SILS whose operation complications are more than the MLC.The main reason is that the operation field don't exposureis sufficient and the formation of surgical operation triangle is not easy.In order to overcome these difficulties,scholars have used the auxiliary methods of exposing the operative field in various operation,including the penetration of abdomen wall retraction and intraperitonealretractionand abdomen wall retraction.This paper with review the advantages and disadvantages of the above methods aiming to affer more values for clinical doctors in opperating SILS who get more knonledge abont it.