Chronic Venous Insufficiency (CVI) is a condition where the veins in the legs struggle to send blood back to the heart. This occurs when the valves in the veins become weak or damaged, leading to blood pooling in the legs. Symptoms may include swelling, pain, and skin changes, which can affect daily activities. CVI can result from various factors, including age, obesity, and a history of blood clots. Treatment options often involve lifestyle changes, compression stockings, and, in some cases, medical procedures to improve blood flow. Early diagnosis and management are essential to prevent complications.