|World Osteoporosis Day|
A march in Rio de Janeiro, Brazil on October 20, 2010 to mark World Osteoporosis Day
|Next time||20 October 2018|
World Osteoporosis Day is observed annually on October 20th, and launches a year-long campaign dedicated to raising global awareness of the prevention, diagnosis and treatment of osteoporosis and metabolic bone disease. Organized by the International Osteoporosis Foundation (IOF), the World Osteoporosis Day campaign is accompanied by community events and local campaigns by national osteoporosis patient societies from around the world with activities in over 90 countries. 
World Osteoporosis Day was launched on October 20th 1996 by the United Kingdom’s National Osteoporosis Society and supported by the European Commission. Since 1997, the awareness day  has been organised by the International Osteoporosis Foundation. In 1998 and 1999, the World Health Organization acted as co-sponsor of World Osteoporosis Day. The day also marks the launch of a year-long campaign to raise awareness of osteoporosis and metabolic bone disease. Since 1999 these campaigns have featured a specific theme.