Mild traumatic brain injury (mTBI) involves subtle yet significant disruptions to brain function following a head impact, often without visible damage. Symptoms can be wide-ranging, from cognitive difficulties to emotional and physical challenges, sometimes persisting long after the injury. Accurate diagnosis relies on clinical judgment, supported by imaging and cognitive assessments. Rehabilitation adopts a multidisciplinary approach, aiming to restore functional abilities and mitigate long-term complications. Despite its “mild” label, mTBI can profoundly affect recovery trajectories, demanding careful clinical management and ongoing research into new therapeutic strategies.