With the increase of elderly population in Shanghai, the incidence of osteoporosis is also increasing. In mild cases, there is general bone pain and weakness, and in severe cases, there is osteoporotic fracture and physical disability, which increases the burden of family care, especially hip fracture in elderly people, and nearly one quarter of them die from various complications in one year, so it is meaningful to diagnose and treat them early. Who is more likely to get osteoporosis, I believe through more than ten years of experience in the specialty, can completely self-predict. First, the age of menopause in women is critical because it means the beginning of bone loss. If you stop menstruating at age 50, you start losing bone mass throughout your body four years earlier than others (normal average age of menopause is about 54), especially women with premature ovarian failure and post-hysterectomy women, who are at greater risk. Secondly, whether you were lighter in weight when you were younger, whether your skin was paler, whether you usually don’t exercise, whether you don’t drink milk, etc., all of these can affect bone density, and it is impossible to reach the recommended dose (800mg) of calcium in the traditional Chinese diet (statistically around 400mg), so milk is essential. 70% of bone mass is influenced by genetics, and you should be even more careful if your parents have a history of fractures. Medications such as cortisol hormones (prednisone, etc.) have a significant impact on bone loss. Patients who have taken hormone therapy for bronchial asthma, nephrotic syndrome, rheumatoid arthritis, etc. all have lower bone density than normal, and patients with diabetes, hyperthyroidism, hyperparathyroidism, and gonadal dysfunction are also at high risk for osteoporosis. If the risk is high after assessment, the diagnosis should be confirmed by a professional DXA machine to measure bone density. Below I will introduce another relatively simple self-prediction method OSTA method. The OSTA index consists of weight and age, which can better distinguish osteoporosis in Asian population.OSTA osteoporosis risk assessment index calculation method: [weight (kg) – age] × 0.2 = value to take integer, <4 for high risk of osteoporosis, 4~1 for medium risk of osteoporosis, >1 for low risk of osteoporosis.