Most fractures are caused either by bad fall or an automobile accident. Healthy bones are tougher and more
resilient to impacts, but as people age, 2 factors increase the risk of a fracture: weaker bones, and greater risk
of falling. People with underlying conditions that weaken their bones have a higher risk of fractures.
Osteoporosis, infection, or a tumor can weaken then bones, thus increasing the risk of a fracture, as listed
above, these are known as a pathological fracture.