This is the official app for the National Osteoporosis Foundation Clinician’s Guide to the Prevention and Treatment of Osteoporosis. The Guide is a standard reference on the prevention, diagnosis and treatment of osteoporosis in postmenopausal women and men age 50 and older in the U.S. The 2013 edition is based on updated information on the incidence and costs of osteoporosis in the U.S. For those with low bone mass, in whom more than 50 percent of fractures occur, the Guide incorporates an analysis from the World Health Organization (WHO) that assesses 10-year fracture risk. This Guide is intended for use by clinicians as a tool for clinical decision-making in the treatment of individual patients. The 2013 updated Clinician’s Guide stresses a clear algorithm for ordering bone mineral density measurement (DXA measurement) and the importance of screening vertebral imaging to diagnose asymptomatic vertebral fractures; provides updated information on calcium, vitamin D, and osteoporosis medications; addresses who to treat and the duration of treatment; includes an expanded discussion of the utility of biochemical markers of bone turnover and discusses causes of secondary osteoporosis.