Proximal humerus fractures respond satisfactorily to conservative treatment, but in old age group, there are difficulties in managing it. So we analyzed 42 cases of proximal humerus fractures according to age and the method of treatment. The results were as follows; 1. Eighteen one part fractures were treated conservatively except one case and show satisfactory result except one. 2. Fifteen two-part fractures were treated by open reduction except one case and show satisfactory result except one. 3. Six three-part fractures were treated by open reduction in all cases and show satisfactory result except one. 4. Three four-part fractures were treated by open reduction or total shoulder arthroplastT 2. respectively in two ceses and show satisfactory result except one. 5. In old age group. loosenings of plate and screws were found in 2 cases. 6. In young age group, loosening of plate and screws was not found. 7. Tension band wire was not related loosening of wire in all cases.