Let’s Talk About Blood Clot Risk: Dr Choong’s World Thrombosis Day Letter in the South China Morning Post
Dr Andrew Choong’s World Thrombosis Day letter, published in the South China Morning Post on 13 October 2026, on the three points in a woman’s life when blood clot risk rises and the warning signs that should never be dismissed. Reproduced in full.
World Thrombosis Day 2026: DVT, PE and Blood Clot Warning Signs
For World Thrombosis Day, Dr Andrew Choong explains when blood clotting becomes dangerous, the warning signs of DVT and pulmonary embolism, and who should be particularly alert.
World Thrombosis Day 2026: Blood-Clot Prevention Must Keep Pace With Hospital Care
Ahead of World Thrombosis Day, Dr Andrew Choong’s opinion article in Cambodianess argues that blood-clot prevention must grow with hospital care. What it means for anyone admitted to hospital, having surgery or giving birth, in Singapore and across the region.
Five Vascular Warning Signs You Should Not Ignore
Five vascular warning signs, from walking-related leg pain to a swollen calf or non-healing foot wound. Learn which symptoms need a review and which need emergency care.
DVT Treatment Window: When Blood Thinners May Not Be Enough
Dr Andrew Choong explains why early assessment matters for selected DVTs, when clot removal may be considered, and why persistent leg swelling after a clot deserves review.
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.
September is Vascular Disease Awareness Month | Signs & Symptoms
Leg pain when walking, swollen legs or slow-healing wounds can be signs of vascular disease. Dr Andrew Choong introduces the September vascular health series and explains when symptoms need assessment or urgent help.
What Is a Pulmonary Embolism? | Blood Clot Awareness Month | Video 4
A pulmonary embolism is a blood clot blocking an artery in the lungs, often after travelling from a DVT. Dr Andrew Choong explains warning symptoms, emergency assessment, anticoagulant treatment and when specialist clot removal may be considered.
What Is a DVT? Deep Vein Thrombosis Explained
Deep vein thrombosis is a clot in a deep vein, usually in the leg. Dr Andrew Choong explains the symptoms, its connection to pulmonary embolism, possible long-term effects, and how assessment and treatment are tailored to each patient.
Why Do Blood Clots Form? DVT & PE Risk Explained
Slow blood flow, a greater tendency to clot and vessel-lining injury can combine to cause DVT. Dr Andrew Choong explains Virchow's triad, common risk factors, sensible prevention discussions and symptoms that need urgent medical assessment.
What is a Blood Clot? | Singapore Vascular Surgeon
Blood clotting stops bleeding after injury, but a clot inside a vessel can obstruct circulation. Dr Andrew Choong explains DVT, pulmonary embolism and arterial clots, including the symptoms that require urgent or emergency assessment in Singapore.
Blood Clot Removal for DVT | Modern Treatment Explained
Catheter-based clot removal has expanded treatment options for selected people with DVT. Dr Andrew Choong explains anticoagulation, thrombolysis and thrombectomy, including how clinicians weigh benefits, risks and the need for follow-up.
World Thrombosis Day: How DVT and Pulmonary Embolism Can Be Fatal
A clot in the leg can travel to the lungs and become life-threatening. Dr Andrew Choong explains DVT, pulmonary embolism, hospital-associated clot risk and the warning signs that need urgent attention.
Vascular Surgery in 60 Seconds: Aorta, Arteries and Veins Explained
What does a vascular surgeon do? Dr Andrew Choong explains the difference between arteries and veins, the conditions vascular surgeons treat, and why a circulation assessment does not automatically mean an operation.