The index finger or middle finger is most commonly lost.
Based on available information, finger injuries leading to amputation disproportionately affect the index and middle fingers compared to the ring finger, pinky finger, or thumb. These injuries often result from being struck by or against an object, or being cut or pierced. A significant percentage of these amputations involve complete severing of the finger, and many occur within the home.
It's important to note that specific statistics can vary based on the population studied and the context of the injuries (e.g., workplace accidents versus household accidents). However, the general trend indicates a higher prevalence of index and middle finger loss.