Retrograde amnesia is a type of memory loss that affects a person's ability to recall events that happened before a specific point in time, often due to injury or trauma. For example, someone who experiences a head injury might forget memories from days, months, or even years prior to the incident. This condition can make it difficult for individuals to remember important life events, such as birthdays or significant achievements. The brain's hippocampus, which plays a crucial role in forming and retrieving memories, is often involved in retrograde amnesia. While some memories may gradually return over time, others might remain permanently lost. Treatment typically focuses on rehabilitation and support to help individuals cope with their memory challenges.