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人们随着年龄的增长,30～40岁以后,骨骼中的成骨细胞功能逐渐降低,破骨细胞对骨过度吸收,造成骨钙丢失。40岁以后,每10年约丢失骨钙3～4％,并且骨结构发生改变,骨小梁穿孔,骨质吸收形成腔隙,从而使骨的强度减弱,发生骨质疏松。骨质疏松症是常见的代谢性骨病,多见于绝经期后妇女,男子骨质疏松症的发生率为妇女的1/6。在一般外力作用下,骨质疏松者即可发生骨折。
People with age, 30 to 40 years old, the osteoblasts gradually reduce the function of bone, osteoclasts over-absorption of bone, resulting in loss of bone calcium. After the age of 40, about 10 ~ 4% of the bone calcium is lost every 10 years, and the bone structure changes. Trabecular perforation and bone resorption form a cavity, so that the strength of the bone is weakened and osteoporosis occurs. Osteoporosis is a common metabolic bone disease, more common in postmenopausal women, the incidence of osteoporosis in men, women, 1/6. In the general role of external forces, osteoporosis can fracture.