The golden indicator of osteoporosis examination is bone density, the normal indicator of bone density is within minus 2.5, and if it is completely normal it should be within minus 1. Minus 1 to minus 2.5 can diagnose bone loss, if more than minus 2.5 is osteoporosis, if more serious easily produce fracture. Therefore, regular bone density testing is very important for middle-aged and elderly people, especially for menopausal women, and if the test index is within minus 1, there is no need to worry too much. If the bone density index has lost its normal index, such as less than minus 2.5, you need to take calcium supplements, more sunshine, exercise and medication.