Definition - What does White Finger mean?
Safeopedia explains White Finger
Physical or emotional shock can lead to the body preventing blood flow to the extremities. Signs of white finger include tingling of the fingers, numbness and skin feels cold to the touch. If you experience signs of white finger, it is important to slowly warm the affected areas, and rest in a relaxing environment. It is recommended that those who work in cold environments wear protective equipment such as gloves and thermal socks to prevent white finger.