Retrograde amnesia is a type of memory loss that affects a person's ability to recall events that occurred before a specific point in time, often due to brain injury or trauma. Individuals with this condition may struggle to remember personal experiences, facts, or information learned prior to the onset of amnesia, while their ability to form new memories may remain intact. This condition can result from various causes, including head injuries, stroke, or neurological disorders. The severity and duration of retrograde amnesia can vary, with some individuals recovering their memories over time, while others may experience permanent memory loss.