Understanding May–Thurner Syndrome

Symptoms, Risks, and How RIA Endovascular Can Help

May–Thurner Syndrome (MTS) is a vascular condition that often goes undiagnosed — not because it’s rare, but because its symptoms can easily be mistaken for other issues. At RIA Endovascular, our physicians specialize in identifying and treating MTS using advanced, minimally invasive techniques that restore healthy circulation and protect long-term vascular health.

What Is May–Thurner Syndrome?

May–Thurner Syndrome occurs when the right iliac artery compresses the left iliac vein in the pelvis. This pressure reduces blood flow from the left leg, increasing the risk of blood clots and causing uncomfortable symptoms. Many people don’t realize the source of their leg pain or swelling is coming from this compression deep in the pelvis.

Common Symptoms

Symptoms of MTS can range from mild to severe and may include:

Persistent swelling in one leg (often the left)
Leg pain, aching, or heaviness
Warmth, redness, or skin discoloration
Enlarged veins in the pelvis or legs
A history of deep vein thrombosis (DVT), especially on the left side

Because these symptoms overlap with other conditions, diagnosis by a vascular specialist is important.

Why Early Diagnosis Matters

If left untreated, MTS can lead to:

Recurrent DVT
Chronic venous insufficiency
Long-term leg pain and swelling
Skin changes or ulcer formation

Early diagnosis helps prevent these complications and allows patients to return to normal activities with improved comfort and mobility.

How RIA Endovascular Diagnoses May–Thurner Syndrome

Our team uses advanced imaging techniques to identify vein compression and assess blood flow. Tools such as ultrasound, CT venography, or MR venography allow our specialists to determine the severity of the condition and create a personalized treatment plan.

Minimally Invasive Treatment Options

At RIA Endovascular, we treat May–Thurner Syndrome using image-guided procedures designed for fast recovery and meaningful results. Treatment may include:

Catheter-Directed Thrombolysis

If a blood clot is present, medication may be delivered directly to the clot to dissolve it safely and effectively.

Venous Angioplasty and Stenting

To relieve the compression, a stent may be placed in the affected vein to keep it open and restore healthy blood flow.

These procedures are typically performed on an outpatient basis, allowing patients to return home the same day with minimal downtime.

Why Choose RIA Endovascular?

Our physicians are leaders in minimally invasive vascular care. We understand how vascular conditions impact quality of life, and our team is dedicated to providing:

Clear, compassionate communication
Customized treatment plans
Advanced imaging and procedural technology
Supportive follow-up care

You don’t have to live with leg pain or swelling — and you shouldn’t ignore symptoms that may point to something deeper.

Take the Next Step

If you’re experiencing persistent leg symptoms or have a history of DVT, our specialists at RIA Endovascular can help determine whether May–Thurner Syndrome is the cause and guide you toward effective treatment.