It is normal for the trace element test for calcium ions to be normal, but the bone density test to suggest osteoporosis. Especially for the elderly patients over 60 years old, women are more often, usually there will be osteoporosis or bone loss. Because osteoporosis is mainly a two-fold problem, on the one hand, it may be due to insufficient calcium in the body, that is, low calcium ions, resulting in impaired bone formation or reduced bone formation. On the other hand, the cause is mainly due to the serious loss of calcium ions. Although the calcium ions in the body are normal, the calcium ions in the bones are relatively low, and osteoporosis or bone loss will occur. For the above situation, first of all, calcium should be supplemented, and if the calcium ion check is normal, calcium absorption should be inhibited, that is, anti-osteoporosis treatment. At present, the commonly used drugs to inhibit calcium absorption or inhibit calcium loss in clinic are Fosamax, zoledronate sodium also called Miguda, and some other proprietary Chinese medicines can be taken.