What is the most common cause of compression fractures?

Osteoporosis is the most common cause of compression fractures, particularly in older adults. This condition leads to a decrease in bone density and strength, making bones more susceptible to fractures, especially in weight-bearing areas such as the vertebrae in the spine. When the vertebrae lose structural integrity due to osteoporosis, even minor stress or trauma can result in a compression fracture.

Other conditions listed, such as Osteogenesis Imperfecta, Multiple Myeloma, and Arthritis, can also lead to fractures, but they are less prevalent as primary causes of compression fractures in the general population compared to osteoporosis. Osteogenesis Imperfecta is a genetic disorder that causes fragile bones but is far less common. Multiple Myeloma involves a cancer process which can weaken bones, but it is not as common as osteoporosis in causing compression fractures. Arthritis primarily affects the joints and does not directly lead to compression fractures in the same way.