OBJECTIVE: To evaluate the efficacy of intraarticular injection of hyaluronic acid and steroid in adhesive capsulitis of shoulder. METHOD: Thirty-nine patients with adhesive capsulitis of shoulder were assigned at random to receive intraarticular injection into the glenohumeral joint. The treatment groups were divided into three: group A, triamcinolone 1 ml and 1% lidocaine 3 ml and normal saline 25 ml; group B, hyaluronic acid 2 ml and 1% lidocaine 3 ml and normal saline 25 ml; group C, hyaluronic acid 2 ml and 1% lidocaine 3 ml. The same physical therapy program was carried out for all patients. Pain was assessed by visual analogue scale (VAS) and range of motion (flexion, abduction, internal rotation and external rotation) was measured before injection, and at 30 minutes, 1 week and 2 weeks after injection. RESULTS: The shoulder range of motion (ROM) and VAS of three groups were all improved at 30 minutes, 1 week and 2 weeks after injection compared with those of preinjection, but there was no significant difference in ROM and VAS among three groups. CONCLUSION: We concluded that intraarticular injection of hyaluronic acid would be a good treatment method in adhesive capsulitis of shoulder, specially in patients with risk of steroid use.