A mild TBI or concussion can be caused by a trauma such as a bump, blow or jolt to the head that disrupts the brain’s normal function. Concussions can also result from a blow to the body that causes the head to move rapidly back and forth. Below are some of the most common types of accident cases involving concussions: Falls: Fall down accidents are the most common cause of traumatic brain injuries and concussions. They can include slip and fall accidents, trip and falls and falls on snow or ice. Car Accidents: Auto accidents are the second most common cause of traumatic brain injuries. Minor accidents like fender-benders can cause the brain to hit the sides of the skull, resulting in a mild TBI or concussion. Workplace Accidents: Work-related accidents can also cause concussions. Construction workers are at increased risk because of their exposure to dangerous surfaces and elevated heights while working on scaffolds and ladders.