Objective. To evaluate the results and effectiveness of simultaneous operations for echinococcosis of the liver. Methods. Surgical diseases requiring surgical treatment (cholelithiasis: calculus cholecystitis, choledocholithiasis, nodular goiter, ventral postoperative hernia) were detected in 38 patients with echinococcosis of the liver. 23 patients underwent organ-preserving operations for echinococcosis, and 15 patients underwent radical operations, all operations were perfomed in combined with cholecystectomy, choledocholitotomy, thyroidectomy, and herniotomy (coating of a polypropylenemesh for hernia gate).Immediate and remote results were studied. Patients were reexamined 6 months after surgery within a 3-year period. The examination included the checkup, general blood test, liver and kidney tests, an ultrasound examination of the abdominal organs, and a chest x-ray once a year. Results. During theimmediate postoperative period 4 patients out of 38 (10.5%) had complications. After simultaneous operations using organ-preserving methods of echinococcectomy, 2 patients out of 23 (8.7%) had complications (pleuritis, wound suppuration), and 2 - out of 15 had radical operations (bile leakage, pleuritis). All complications had been cured by the time of discharge. The remote results were studied over a period of 6 months to 3 years. 34 patients were examined up to 1 year, 31 - from 1 to 2 years, 26 - from 2 to 3 years. Within the examination and follow-up periods no recurrence of echinoccosis was observed. Conclusion. During simultaneous operations and the echinococcectomy of the liver it is necessary to observe accurately the rules of aparasiticity and antiparasiticity.Simultaneous operations for the liver echinococcosis should be performed according to strict indications and by a highlyexperiencedandqualified surgeon. Patients who have undergone simultaneous operations was asked toundergoa medicalcontrol examination at least once a year. What this paper adds The possibility of performing simultaneous operations for echinococcosis of the liver has been defined. The sequence of operations for echinococcosis in combination with other pathologies requiring surgical treatment has been justified.