Due to the work that the hands are designed to do and their exposure, the hands become less susceptible to some stimuli than other areas of the body.
I’ve never thought about it before, but I suppose those who play cricket regularly would be accustomed to the type of blow to the hand experienced when catching a ball. It is certainly more painful when it hits your body.
Some factors that may decrease pain tolerance are apprehension, fear, anxiety, fatigue, anger, and a perceived lack of personal control over one’s body or fate.