The most typical symptom of osteoporosis is pain. The most typical symptom of osteoporosis is pain. Whether it is called a hazard or a clinical manifestation, this is basically what it means, that is, it brings you pain. The main danger of osteoporosis is fracture. The most common fracture is the distal forearm fracture, which is most commonly caused when an elderly person accidentally falls and braces his upper limb against the ground. The second is compression fracture of the lumbar and thoracic spine, which is a fracture of the entire spine, often also caused by an inadvertent fall, which may be only a minor fall, but the painful symptoms are always present and easily ignored or delayed. The third is the fracture of the hip joint (including the fracture of the femoral head and femoral neck), this is more serious, so it brings trouble to the family, so the most important is the hip fracture, hip fracture is often called the last hu fracture in life, because the mortality rate is higher one year after the fracture. Once the timely treatment is not carried out, a series of complications brought about (such as accumulative pneumonia, pressure sores, venous thrombosis of the lower extremities due to long-term bed rest) can seriously endanger the life of the patient and shorten the survival period of the patient.