Varicose Veins: Causes, Risks, and Treatment Options

Vascular
Originally Published:
February 25, 2016
Updated:
March 25, 2025
Read Time:
2 min
Author:
Varicose Veins: Causes, Risks, and Treatment Options

Varicose veins are enlarged, twisted veins often seen just beneath the surface of the skin, typically in the legs and ankles. These veins may appear as blue or purple cords, and can cause symptoms like:

  • Aching or heaviness in the legs
  • Swelling in the calves or ankles
  • Skin discoloration
  • Tenderness or warmth to the touch

What Causes Varicose Veins?

Varicose veins are caused by venous insufficiency, a condition where blood doesn't flow properly back to the heart. This occurs when vein valves malfunction, allowing blood to flow backward and pool in the veins—known as venous reflux.

This reflux causes veins to swell and twist. Valve failure can result from:

  • Prior blood clots
  • Damage to the veins
  • Vein dilation that prevents valves from closing properly

Common Risk Factors

Several factors increase your risk of developing varicose veins:

  • Family history (the strongest predictor)
  • Pregnancy
  • Obesity
  • Prolonged standing, especially due to occupation
  • History of blood clots

Complications of Untreated Varicose Veins

If left untreated, varicose veins can lead to:

Blood clots

Slow-moving blood thickens and increases clot risk, particularly in superficial veins.

Ankle wounds (venous ulcers)

Pooling blood raises pressure in the lower legs, damaging skin and eventually causing open, slow-healing wounds near the ankles.

Early diagnosis and treatment can reduce your risk of these serious complications.

Varicose veins on a patient’s leg showing signs of swelling and discoloration
Varicose veins are more than cosmetic—they can signal deeper vein issues. Early treatment is key to preventing complications.

Treatment Options: How Varicose Veins Are Treated

Since vein valves cannot be repaired, treatment focuses on closing the affected vein to redirect blood flow to healthier ones.

The most common and effective method is:

Radiofrequency Ablation (RFA)

  • Minimally invasive, outpatient procedure
  • No general anesthesia required
  • A catheter delivers heat inside the vein, sealing it shut
  • Blood is naturally rerouted through healthy veins

This method addresses the source of venous reflux, which reduces the chance of recurrence.

Expert Vein Care at BASS Medical Group

At BASS Medical Group, our vascular specialists use the latest techniques—including RFA and venous closure therapies—to help patients manage varicose veins safely and effectively.

Find a Vein Specialist Near You
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Medical Disclaimer: The information provided in this blog is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. BASS Medical Group does not endorse any specific tests, treatments, procedures, or opinions referenced in this content. Individual results may vary. Always consult with your physician or a qualified healthcare provider regarding any medical concerns or before making changes to your health regimen.