What chronic condition in which venous circulation is inadequate due to partial vein blockage or leakage of valves?

The chronic condition in which venous circulation is inadequate due to partial vein blockage or leakage of valves is called Chronic Venous Insufficiency (CVI). It occurs when the one-way valves in the veins that help blood flow back to the heart become damaged or weakened, causing blood to pool in the veins and leading to symptoms such as swelling, pain, discoloration, and skin ulcers.