Causes

Sacral fractures are usually caused by a direct trauma to the lower spine, which may result from a high energy impact. They can also occur when falling on one leg from a significant height posing heavy load on one side of the sacrum. Stress fractures can result from overuse and persistent load on the bone either following extreme physical activity in trained athletes, strenuous sport activities in non trained individuals and in older people with fragile, osteoporotic bones. The main causes for a sacral fracture include:

Car accidents

Fall from a significant height in young people

Fall from low height in elderly people

Extreme sport

Intense military training