Background: The normal mechanical function of the hip is substantially altered by a variety of disorders. The surgical treatment of such conditions, particularly by hip replacement offers an opportunity not only to replace the articular surface of joint, but also to improve the long term mechanical function by decreasing the load on the joint. Objective: To evaluate short term outcome of large diameter head in uncemented total hip arthroplasty. Materials and Methods: This study was done in the outpatien and emergency Department of Orthopaedics, Pt. B.D.S. P.G.I.M.S. Rohtak. Duration of study period was from January 2010 to June 2020. Results: 14 cases (58.33%) had avascular necrosis of head of femur, 5 cases (20.83%) had osteoarthritis, one patient had rheumatoid arthritis. 15 patients (60%) were operated on left side, while 8 (32%) were operated on right side and 1 (8%) case was operated on both sides. Metal-on-metal THR was done in 8 cases (32%), Metal-on-polyethylene THR was done in 17 cases (68%) and Ceramic-on-ceramic was done in none. Postoperative pain was absent in 15 patients (60%), mild pain was seen in 9 patients (36%) and moderate pain in one patient (4%)