Why Do Fingers Turn White in Raynaud’s Disease?

Alina

Raynaud’s disease causes some fingers or toes to change color—often turning white or blue—when exposed to cold or stress. What exactly happens in the blood vessels during these episodes, and why do the fingers feel numb or tingly? Should you consult a doctor if these color changes occur frequently or are accompanied by pain, to prevent complications and manage symptoms effectively?

Zoya

Raynaud’s disease occurs when small blood vessels in the fingers or toes spasm (vasospasm) in response to cold or stress, temporarily reducing blood flow. This causes the skin to turn white (lack of blood), then blue (low oxygen), and as circulation returns, it may turn red with throbbing or tingling. The numbness or “pins and needles” feeling happens because nerves aren’t getting enough oxygen during the reduced blood flow. While mild cases are common, you should consult a doctor if episodes are frequent, severe, painful, or associated with sores or skin damage, as this may indicate a more serious underlying condition and require proper management.