Postoperative analgesia (PSA) plays an important role in the evaluation of professional practices, and plays a key role in reducing postoperative morbidity and mortality.We conducted a prospective observational study evaluating postoperative analgesia in patients operated on in the visceral surgery department of CHU Habib Bourguiba Sfax Tunisia.We included 60 patients aged over 18 years over a 15-day period.Postoperatively, monomodal analgesia was...