PURPOSE: The purpose of this study is to evaluate correlation according to sites measured from women diagnosed with osteoporosis without other factors influencing osteoporosis. MATERIALS AND METHODS: Two hundred patients diagnosed with osteoporosis using dual-energy X-ray absorptiometry from January 2006 to January 2007 were evaluated. All patients were measured at the hip joint (Femur neck, Ward triangle, and great trochanter), lumbar spine body (L1-4), and distal radius. Results of measurements were then evaluated for determination of coincidence. RESULTS: Mean bone mineral density was lowest at Ward's triangle(-2.93+/-0.95) and radius midshaft(-2.95+/-1.21). The rate of disconcordance between hip joint and lumbar spine was 37%, between hip joint and distal radius, 34%, and, between the lumbar spine and distal radius, 38%. With increase in age, a greater decrease in bone mineral density was observed, and markedly decreased bone mineral density was observed between the ages of 60 and 70-years. CONCLUSION: Rate of disconcordance of bone mineral density among hip joint, lumbar spine, and distal radius was significant. To prevent further fracture, all sites (hip joint, lumbar spine, and distal radius) must inevitably be measured.