Background: The purpose of this study was to evaluate the effect of single blinded anterior intra-articular corticosteroid injection to the glenohumeral joint performed by short experienced clinicians in frozen state adhesive capsulitis patients. Methods: From March to June of 2013, among the patients who visited the shoulder outpatient clinic due to shoulder pain for 5-6 months and those patient diagnosed as frozen state adhesive capsulitis was selected. The diagnosis were based on base, first the global limitation of range of motion, defined as forward elevation <100, external rotation at side <10, internal rotation less than buttock, and abduction <70. Second, the patients had additional radiologic evaluations showing no major pathologies for such stiffness. Clinical outcome, were performed with pain visual analog scale (PVAS) and functional visual analog scale (FVAS), American Shoulder and Elbow Surgeons Shoulder score (ASES), preinjection and postinjection after 2-4 weeks. Finally 82-patients were enrolled. Mean age of the patients was 55.1 years and mean follow-up duration was 25.17 days. Results: The mean preinjection PVAS was 6.91 and postinjection was 3.11, there was 3.8 decreases from preinjection status (p < 0.001). The mean FVAS score showed 4.26 at preinjection and 6.63 afterwards (p < 0.001). The ASES score showed 27.89 increases after injection (p < 0.001). There were 64-patients (78.04%) who reported more than 3 points of decrease of PVAS, who could be judged as effective treatment. Conclusions: Single anterior glenohumeral steroid injection by short experienced clinicians to the patients with frozen state adhesive capsulitis has shown relatively high efficacy in clinical result evaluated by means of PVAS.