Cold sensations to the fingers can come from poor circulation, disorders of the nervous system, cold exposure, Raynaud's phenomenon, and low thyroid condition (hypothyroidism). Cold fingers may be associated with
- hand pain,
- wrist pain,
- swollen fingers,
- tingling fingers,
- thickness of the fingers,
- discoloration of the fingers (fingers turning blue or white).
Source: http://www.rxlist.com