Definition of Fingers that change color :

Fingers that change color when they are exposed to cold temperatures or stress are a sign of cyanosis. Cyanosis is a bluish discoloration of the skin and mucous membranes from lack of oxygen.

Considerations:

Raynaud's phenomenon may cause sudden change in the finger color.

Common Causes:

• Arterial insufficiency or spasms of arteries that supply blood to the fingers and toes
• Buerger's disease
• Necrotizing vasculitis
• Scleroderma
• Systemic lupus erythematosus