Frozen shoulder: Unique situation, in which there is a loss of function, leading to invalidity of the patients. Term frozen shoulder was discovered in 1872 by Duplay, which is know by many names in the medical literature: (adhesive capsulitis) «Pasteur 1932. r). (Idopatic frozen shoulder) «willy - 1991.r». (Frozen shoulder) «Codman - 1934. r». (Tendoveginatice of caput lounges of biceps) «Neviaser - 1945.r» The aim of our worke included to get good results. To confirm a diagnosis of frozen shoulder we used the following methods X ray, MRI, U/S of the shoulder. We used a censervative treatment in a group of 47 patients, and operative treatment in a group of 67 patients. After our positive operative treatment in a second group of patients, we advise to do arthroscopy in the treatment of the frosen shoulder.