Chilblains: Why Fingers Swell in Winter & How to Prevent It

• Fingers and toes swell, turn red, and itch intensely in winter, a condition medically known as 'Chilblains' or 'Pernio'.
• Swelling occurs when constricted blood vessels, due to cold, suddenly dilate upon rapid warming, causing blood to leak into tissues.
• Individuals with poor circulation, Raynaud's phenomenon, anemia, diabetes, and smokers are at higher risk.
• Symptoms include red/purple spots, tight swollen skin, burning, and itching, appearing 12-24 hours after cold exposure.
• Prevention involves wearing loose warm clothing, gloves, and socks, avoiding sudden temperature changes, and maintaining activity.

Why It Matters: Chilblains cause painful winter finger swelling due to sudden temperature changes; prevention is key.