骨质疏松症是以骨量减少、骨的微结构破坏、骨强度下降和易于骨折为表现的全身性骨病。骨的强度取决干来自造血组织的破骨细胞对骨的吸收及来自成骨细胞的骨重建之间的平衡。随着绝经、年龄老化或由于某些疾病和长期服用某些药物等原因,使破骨细胞吸收超过了成骨细胞的骨形成,致使骨量丢失,造成骨质疏松。治疗骨质疏松症的药物可分为3大类:骨 Osteoporosis is a generalized bone disease characterized by reduced bone mass, damaged microstructure of the bone, decreased bone strength and easy fracture. The strength of the bone depends on the balance between bone resorption by osteoclasts from hematopoietic tissue and bone remodeling from osteoblasts. With menopause, aging or due to certain diseases and long-term use of certain drugs and other reasons, so that the absorption of osteoclasts than osteoblasts bone formation, resulting in loss of bone mass, resulting in osteoporosis. The treatment of osteoporosis drugs can be divided into three categories: bone