What causes discoloration in your hands?
Peripheral cyanosis is when there is a bluish discoloration to your hands or feet. It’s usually caused by low oxygen levels in the red blood cells or problems getting oxygenated blood to your body. Blood that’s rich in oxygen is the bright red color typically associated with blood.
Fingers or toes may change color when they are exposed to cold temperatures or stress, or when there is a problem with their blood supply.