ABSTRACT: Background:Shoulder disorders are one of the most common complications in patients with diabetes, and yet it receives relatively little attention. One of the most common shoulder disorders is frozen shoulder, also known as ‘adhesive capsulitis’. Frozen shoulder causes severe pain, restricts joints’ range of motion, and disturbs sleep when the pain is severe, all of which disrupt patients’ daily lives. Recently, radial extracorporeal shockwave therapy was presented as a new way to treat frozen shoulder. Purpose: The aim of this study was to determine the effect of shockwave therapy on pain in diabetic frozen shoulder in diabetic patients’ type 2. Subjects: Forty diabetic patients of both genders were selected from Elsahel Teaching Hospital. The patient’s age ranged from 45 to 60 years. They were randomly assigned into two groups equal in number. Group (A) who received radial extracorporeal shockwaves and home routine. Group (B) who received traditional physiotherapy (composed of ultrasound and aerobic, range of motion and mobility exercises). The treatment program continued for two weeks (3 sessions per week). Visual analogue scale was used in the assessment of level of shoulder pain before and after the course of treatment. Results: There was a significant decrease in the value of visual analogue scale in group (A) than group (B). Conclusions:radial extracorporeal shockwaves decreased pain in diabetic frozen shoulder in type 2 diabetic patients.