Diagnosis Osteoporosis can be diagnosed based on medical history, clinical manifestations (bone pain, fracture, etc.), laboratory tests (such as increased blood calcium, urine calcium, increased serum alkaline phosphatase, low serum testosterone level, etc.), X-ray film and bone densitometry, etc. The diagnosis can be confirmed. It is best for patients to go to a regular hospital for examination to avoid misdiagnosis and missed diagnosis. People at high risk of osteoporosis are: people who have had fractures; women older than 65 years old and men older than 70 years old; people who are addicted to smoking and alcohol; people who diet excessively to lose weight; people who do not often get sunlight; people whose diet is high in protein; people who are bedridden or rarely exercise for a long time; people who take steroids, antispasmodics, diuretics, anticoagulants, stomach medicines, painkillers for a long time; people who suffer from diseases affecting bone metabolism; people with low sex hormones People with a family history of fractures. Prevention Prevention of osteoporosis starts with children. Our bones seem to be stationary, but in fact they are always in the interaction of bone formation and bone resorption. From birth, bone formation is greater than bone resorption, and bones become stronger and stronger day by day. 20 years of age before the fastest rate of bone deposition, 20 years of age basically reached 90% of the maximum human bone volume, to 30 to 40 years of age to reach the highest point of bone volume, that is, the peak bone volume. The reserve of bones before the age of 30 is significantly greater than the expenditure, the more reserves, the smaller the risk of osteoporosis and osteoporotic fracture later. 30 to 40 years old, bone formation and bone resorption are in balance. After about 40 years of age, bone resorption is greater than formation. Women lose bone cancellous mass at approximately 35 years of age, begin to lose bone dense mass at approximately 40 years of age, and bone loss can occur at all skeletal sites as they age. Over the course of life, women may lose up to 30% of their bone dense mass and up to 50% of their bone loose mass. And women lose bone mass at an accelerated rate during menopause. Accompanied by estrogen deficiency, this accelerated bone loss can last for more than 5 years. Accelerated bone loss leads to the development of osteoporosis. Whether bones are in the best condition or not is related to genetic and environmental factors, etc. We should educate and guide young people to pay attention to their diet and exercise from an early age, so that their bones grow strong from a young age. Most of the accumulation of bone mass occurs during childhood and adolescence. Our boys and girls reach close to 90% of the bone mass before the age of 19. It is important to educate adolescents not to let go of the remaining 10%, and to strengthen nutrition and exercise during adolescence. The age of strongest bones is 25 to 40 years old, which means that the bones reach the highest bone mass and the best quality at that age. After the age of 40, the rate of bone loss exceeds the rate of formation, bone mass begins to decline, bone quality gradually becomes brittle, and the chances of osteoporosis and osteoporotic fractures increase with age. If exercise is neglected in younger years and the diet is not balanced, resulting in low dietary calcium intake and failure to achieve the desired peak bone mass and bone quality, osteoporosis can occur at an earlier age. Therefore, we urge that the prevention of osteoporosis should start early to obtain the ideal peak bone mass at a young age so as to have healthy bones throughout life.