What is May-Thurner syndrome?❤️‍🩹 It’s a vascular compression issue, where an artery presses on a vein in the pelvis, limiting blood flow from the lower body back to the heart—like a pinched hose. Blood can still move, just not efficiently. That’s why symptoms can be confusing and overlap with POTS, EDS, pelvic pain, leg heaviness, swelling, and feeling worse when upright. Most people aren’t diagnosed with basic ultrasounds. It usually takes specialized imaging (CT/MR venogram or IVUS) and the

May–Thurner Syndrome (MTS), also called iliac vein compression syndrome, is a vascular condition in which the right common iliac artery compresses the left common iliac vein against the lumbar spine. Pathophysiology • The compression leads to restricted venous outflow from the left leg. • Over time, this can cause venous hypertension, scarring, and the development of deep vein thrombosis (DVT) in the left lower extremity. • It is thought to explain why left-sided iliofemoral DVTs are more common