It is estimated that about 40% of women and 13% of men aged 50 years and older may suffer from osteoporotic fractures; nearly 20% of women aged 50 years and older have at least one vertebral fracture; the most dangerous is hip fracture, with more than 650,000 hip fractures in Europe and the United States each year; this catastrophic condition can cause chronic pain, limited mobility, disability and loss of independence; about 20% of hip fracture patients aged 50 years and older die within one year. This catastrophic condition can cause chronic pain, limited mobility, disability and loss of independence; approximately 20% of hip fractures in patients over 50 years of age die within one year. Osteoporosis is a systemic metabolic bone disease characterized by reduced bone mass and easy fracture. Women entering menopause due to the decline in ovarian function due to the sudden reduction of estrogen in the body, will also accelerate bone loss, aggravating the symptoms of osteoporosis. Second, the dangers of osteoporosis – insidious onset Osteoporosis, bone loss itself, in most cases there are no symptoms, so the medical term for it is “silent epidemic”. The elderly will only pay attention to osteoporosis when they experience back pain, height shortening, or even fractures. Osteoporosis is second only to cardiovascular disease in terms of mortality from fractures, and has attracted a great deal of attention from the international medical community. The mortality rate of hip fractures caused by osteoporosis in the elderly is as high as 20% within one year, and the disability rate is as high as a staggering 50%. Third, the prevention of osteoporosis – diet + exercise + drugs The pathological changes of osteoporosis are irreversible, so prevention is more important than treatment. First of all, reasonable diet, in order to maintain bone health, the daily calcium intake of the elderly should be not less than 800-1000 mg, foods with high calcium content include various dairy products, soy products, sesame paste, kelp, shrimp, dark green vegetables, etc. Foods rich in vitamin D include poultry, eggs, animal liver, etc. Those who have insufficient dietary intake should take calcium supplements. Among them, pregnant women, lactating women, and the elderly should routinely take calcium supplements. In addition to a proper diet, it is indispensable to maintain a moderate amount of daily exercise, especially a moderate amount of outdoor exercise and adequate sunlight exposure, which play an important role in the prevention of osteoporosis. The most beneficial exercise for bone health is weight-bearing exercise, such as walking, jogging, stair climbing, tennis, dancing, Tai Chi, etc., which can strengthen the skeletal system, enhance balance and reduce the chance of fracture. Pay attention to home safety to avoid falls elderly people or patients who already suffer from osteoporosis need to pay attention.