Osteoporosis is the most common reason for a broken bone among people who are old.Bones that commonly break include the back bones, the bones of the forearm, and the hip.Until a broken bone occurs there are typically no symptoms Back pain, Loss of height and stooped posture, A curved upper back (dowager's hump), Broken bones (fractures) that might occur with a minor injury, especially in the hip, spine , and wrist.
A major study concluded that in a Japan population aged 35 years or older the crude incidence of hip fracture was 244.8 per 100,000 person years from 2004 to 2006, and the gender-specific incidence was 99.6 per 100,000 person years for men and 368 per 100,000 person years for women. When data was analysed and compared with that from 30 years ago it was also concluded that there is an increasing incidence of hip fracture in Japanese populations. The highest incidence of hip fracture from Asia has been reported from Singapore. A study by Koh et al. revealed that hip fracture rates from 1991 to 1998 (per 100,000) were 152 in men and 402 in women, and this was 1.5 and 5 times higher than corresponding rates in 1960