Osteoporosis is a common type of bone metabolic disease, mainly divided into two categories: primary and secondary. Primary osteoporosis is associated with increased age and female menopause, and has a higher incidence, according to a survey, about 1/3 of menopausal women in the United States suffer from this disease. Sometimes even urinary stones or hypertension, pancreatitis, or epilepsy are the first symptoms, so it is easy to miss and misdiagnose. Effective treatment of osteoporosis focuses on early screening, early detection, and early treatment to achieve early fracture prevention. Therefore, people with the following high-risk factors for osteoporosis should seek medical attention and undergo osteoporosis screening as early as possible: 1. age: postmenopausal women and men over 65 years of age (especially women 65 years of age and men over 70 years of age should go to the hospital for osteoporosis screening even if they have no other risk factors for osteoporosis); 2. gender: women with delayed menarche, premature amenorrhea or low estrogen due to ovariectomy 3, genetic: family history of osteoporosis or fragility fracture (genetic factors play a role of 70% to 80%); 4, diet: long-term partial diet, low calcium diet, malnutrition; 5, wasting: low body mass index (BMI), the incidence of osteoporosis is high; 6, lifestyle habits: alcohol abuse, heavy smoking, long-term coffee, strong tea, lack of sunlight exposure, etc.; 7, drugs: long-term use of sugar 8. diseases: endocrine diseases (thyroid disease, parathyroid disease, diabetes, etc.), nutritional metabolic diseases, renal insufficiency, rheumatoid arthritis, severe liver disease; 9. lack of exercise: such as long-term bed-ridden, sedentary habit; 10. previous history of fragility fractures (i.e. fractures caused by minor external forces): their re-fracture The rate of re-fracture is higher than that of normal people.