Osteoporosis 2023 is a bone disease that develops when bone quality or structure deteriorates, bone mineral density declines, or when bone mass decreases. This may result in a loss of bone density and an elevated risk of fractures (broken bones). Osteoporosis is referred to as a "silent" illness because it frequently goes unnoticed until a bone is broken, and sometimes even then. Osteoporosis is the main factor in fractures in elderly men and postmenopausal women. Any bone can break; however, hip, spine, and wrist vertebrae are the most frequently broken bones.