Inclusion Criteria:  Age ≥ 18 ans ; Woman who underwent laparoscopic or robotised laparoscopic surgery in peritoneal cavity (benign or malignant gynaecological affection) ; Planned ambulatory surgery Patient willing and able to be treated and followed according the protocol during the trial ; Patient covered by the French "Social Security" regime ; Effective contraception for reproductive age patients ; Signed written informed consent before surgery  Per-operatory eligibility criterion :  No conversion from laparoscopic surgery to laparotomy surgery  Exclusion Criteria:  Extra-peritoneal surgery scheduled ( example : aortic dissection) ; Upper-abdomen surgery (example : liver, gall bladder) ; History of shoulders pains prior to surgery (the assessment must be carried out within a period of 30 days before the surgery) ; Inability to comply with medical follow-up of the trial (geographical, social or psychic reasons) Person under guardianship Pregnant or breastfeeding woman  Non eligibility criterion known during the operation :  Conversion from laparoscopic surgery to laparotomy surgery