Osteoarthritis is a chronic and progressive joint disease, the mail cause of which is the deterioration of joint cartilage. It most often affects the hip and knee joints and the joints of the hands. It mostly affects older people. Damage caused by mechanical stress, together with reduced regeneration of joints, is consudered to be the cause of osteoarthritis. Pain is the main symptom of disease and is associated with joint stiffness, instability and weakness. It can also cause reduced range of motion, functional limitations and difficulties in performinf daily activities. Physotherapy assessment through subjective and objectie examination of the patient and analysis of measurements and tests leads to a therapy plan whose goal is to reduce pain and improve functionality and daily activities of life. In addition to pharmacological and surgical treatment, physiotherapy plays an important role in the treatment and rehabilitation of patient with osteoarthritis, but it is also important to educate patients in order to achieve greater independence in performing activities of daily life. The quality of life is greatly impaired, therefore it is important to make it easier for patients to perform some activities and help to be as less dependent on others as possible.