Postmenopausal osteoporosis is mainly caused by the rapid decline of estrogen levels in the body, resulting in abnormal bone metabolism. The rapid decline of estrogen levels in the body will cause a decrease in bone content and impaired absorption of calcium components in female patients, resulting in the manifestation of osteoporosis. Clinical treatment mainly includes the following points: 1. Encourage postmenopausal women to consume enough calcium, such as milk, vegetables, nuts and soy products; 2. Participate in outdoor exercise more often, and sunlight irradiation can promote calcium absorption; 3. Postmenopausal osteoporosis is due to the sudden drop of estrogen, which can be supplemented with estrogen or estrogen receptor modulators appropriately according to the specific conditions of the patients; 4. Antiosteoporosis medications can be used appropriately, such as Oral calcium, bisphosphonates or vitamin D3 to promote calcium absorption.