Patients aged 80 years and over show greater risk of complicated gallbladder diseases and associated comorbidities. The aim of the study is to evaluate the prognosis after laparoscopic or open cholecystectomy in these patients.100 patients aged between 80 and 92 years (group 1) and 241 patients aged between 70 and 79 years (group 2), undergoing cholecystectomy for gallbladder disease, are the subject of the study. Types of disease and surgery and p.o. morbidity and mortality have been evaluated.The patients of group 1 have shown a significant greater incidence of p.o. morbidity (20%) than group 2 (2.3%) (chi2 = 39.5; p < 0.001), regardless to the type of cholecystectomy. Endoscopic sphincterotomy for lithiasis of common biliary duct seems an important risk factor (chi2 = 7.1; p < 0.001). In group 2, the morbidity rate after laparoscopic cholecystectomy was lesser than after open surgery (X2=5.3; p < 0.02). In both groups, postoperative hospital stay was longer after open cholecystectomy and endoscopic sphincterotomy.Patients aged 80 years and over, undergoing cholecystectomy, specially after endoscopic sphinterotomy., have a greater risk of p.o. morbidity and mortality than younger. Laparoscopic and open cholecystectomy seems to bear the same poor p.o. prognosis.