Acquired brain injury (ABI) refers to any damage to the brain that occurs after birth, as opposed to congenital brain injuries that are present at birth. ABIs can result from various causes, including trauma, stroke, infections, or lack of oxygen. The effects of ABI can vary widely, impacting cognitive functions, physical abilities, and emotional well-being. Common symptoms of ABI may include difficulties with memory, attention, and problem-solving, as well as changes in mood or behavior. Rehabilitation often involves a multidisciplinary approach, including physical therapy, occupational therapy, and speech therapy, to help individuals regain skills and improve their quality of life.