
Chronic Venous Insufficiency (CVI): Symptoms, Causes, and More
Chronic venous insufficiency (CVI) is a long-term condition where the veins in your legs have trouble sending blood back to your heart. Unlike arteries, which have muscular walls to help move blood, veins rely on tiny, one-way valves that help push blood upward. When these valves become damaged or weakened, blood can pool in your…