The book is devoted to the diagnosis, prevention and treatment of osteoporosis - a pathology that in many countries has acquired the character of a "silent epidemic." The issues of physiology and pathology of bone tissue, the mechanisms of the development of osteoporosis, its diagnosis, the use of preventive and therapeutic agents are presented in an accessible form. Separate chapters are devoted to methods for studying and criteria for assessing the state of human bone tissue, osteopenic syndrome with mechanical stress deficiency, as well as osteoporosis in dental practice. The book can be used as a teaching aid for students and residents of the medical and dental faculties of medical universities. For a wide range of doctors who face the problem of osteoporosis.