A Venous Doppler/DVT Ultrasound Scan is a non-invasive procedure that uses high-frequency sound waves to assess blood flow in the veins, particularly in the legs. It is primarily used to detect Deep Vein Thrombosis (DVT), a condition where blood clots form in deep veins, which can lead to serious complications. The scan helps identify clots, assess vein structure, and guide appropriate treatment. It is quick, safe, and provides accurate results without radiation.