Objectives: This study is designed to investigate the degree of correlation of hemiplegic shoulder pain to some clinical parameters including electrodiagnostic testing. Methods: Fifty post-stroke patients were divided into 3 groups: Group A patients had spontaneous hemiplegic shoulder pain, Group B patients had shoulder pain only during movement, and Group C patients had no shoulder pain. The correlational relationships between shoulder pain in the hemiplegic side and some clinical parameters including age, sex, side affected, duration of stroke, motor function, sensory impairment, spasticity, shoulder subluxation, shoulder contracture, peripheral nerve conduction, and the presence of spontaneous electromyographic [EMG] activity was analyzed statistically. Results: Data analysis revealed no significant correlation between the hemiplegic shoulder pain and age, sex, side affected, or duration of stroke. However, the presence of shoulder subluxation or limitation of passive shoulder range of motion [ROM] sho...