Varicose veins: scan first, treatment second
Similar-looking varicose veins can have different causes beneath the surface. Dr Andrew Choong explains how vascular ultrasound identifies venous reflux and guides a treatment plan that matches your symptoms and scan findings.
DVT Warning: Red, hot, swollen painful leg
New one-sided leg swelling, pain or warmth may be a DVT and needs urgent assessment. Dr Andrew Choong explains possible symptoms, pulmonary embolism warning signs, risk factors and how venous ultrasound helps investigate a suspected blood clot.
What Is a Duplex Ultrasound? Vascular Surgeon Explains
Ultrasound gives the image, Doppler assesses blood flow, and duplex combines both. Dr Andrew Choong explains how vascular ultrasound investigates reflux, narrowed arteries and possible clots, what happens during the scan and how the findings guide care.
When Is Leg Swelling Not Just Water Retention? 2 of 2
Learn how duplex ultrasound helps assess venous swelling, why improvement with compression does not prove the cause, and when one-sided swelling needs urgent care.
Why Varicose Veins Feel Worse at the End of the Day
Evening aching and heavy legs can reflect pressure building in veins with leaking valves. Learn how movement, assessment and ultrasound can help clarify the cause.
President Trump’s Chronic Venous Insufficiency: A Vascular Surgeon Explains
The public announcement of President Trump’s chronic venous insufficiency raised questions about leg swelling and vein health. Dr Andrew Choong explains venous valves, duplex ultrasound, the range of symptoms and when swelling needs assessment.