Objective: The conducted research aims to investigate whether physical therapy has an influence on the clinical picture of osteoarthritis of the hip: does physical therapy have an effect on the improvement of the movement range; does physical therapy have an affect to reduce fatigue and pain. The specific purpose of this research is to discover the effect of physical therapy on the clinical picture of hip osteoarthritis, whether and if it is, to what extent range of movement's improvement, pain and fatigue reduction has occurred. Methods: The research was conducted on a random sample among users of the Zavod za fizikalnu medicinu i rehabilitaciju s reumatologijom, KBC Split services who were at rehabilitation with the diagnosis of osteoarthritis of the hip. Respondents were on therapy for 10 days, and all of them had exercises and interferential currents for therapy. Participation of the respondents was voluntary with the guaranteed anonymity. The final sample on which data processing was made consisted of 10 respondents, of whom 7 were females and 3 males; the left hip was affected in 5 subjects, and at the other 5 right hip was affected. Results: The measurements of the range of motion show that the majority of respondents in all movements (active and passive) had an improvement. The average values of range of movement improvement are: flexion with extended knee 7.5 ° active and 8 ° passive; flexion with bent knee 2 ° active and 2.5 ° passive; extension 2.5 ° active and 2 ° passive; abduction 4 ° active and passive, adduction 3 ° active and 4 ° passive; internal rotation 4 ° active and 5 ° passive and external rotation 6 ° active and 5 ° passive. Results obtained through VAS pain indicate that on average, the respondents showed a decrease in pain by 1.9. Reduction of pain based on VAS score was recorded in all subjects. Data obtained through VAS fatigue indicate fatigue reduction in most respondents (N = 9) by 1.7. Conclusions: Exercises combined with interferential current therapy had an effect on improving the range of motion in all 10 subjects. There was an improvement in all movements. There was also an improvement of reduction of pain in all subjects, while most respondents noted a decrease in fatigue. Physical therapy has the most important role in the rehabilitation of people with osteoarthritis of the hip.Therapeutic exercises and change of lifestyle are the most important part of physiotherapy in treating osteoarthritis of the hip.