What Causes Spider Veins and How Can I Get Rid of Them?

It’s easy to spot spider veins. These thin blood vessels form a weblike design in red, purple, or blue under the skin, most prominently on your legs and face. While they typically aren’t harmful, spider veins can increase your chances of having varicose veins and can take a toll on your self-confidence. But Dr. Michael Kassouf and our experienced VeinMedic team can help. We offer straightforward solutions that can restore your appearance and banish your spider veins — no surgery required.

Understanding spider veins

You have a vast network of blood vessels — over 60,000 miles long — running throughout your entire body. Some of these vessels carry oxygenated blood away from your heart, and others bring deoxygenated blood back. To keep your blood flowing in the correct direction, each of these vessels contains a tiny “one-way” valve. 

When you develop a spider vein, one or more of those valves becomes weakened or damaged. This allows your blood to visibly pool and branch out, leading to the weblike appearance.

Common factors that increase your chances of having spider veins include:

While you can have spider veins anywhere, they’re most common on your legs and face. 

Say goodbye to your spider veins for good

We usually recommend two nonsurgical methods to eliminate spider veins: sclerotherapy and laser therapy.


During this treatment, we inject a special chemical irritant into your spider veins. This substance irritates the veins’ walls, which close shut, preventing blood from continuing to flow in the area; blood flow is rerouted to healthy veins. Within 4-6 weeks, the vein shrinks, and its visible signs vanish. 

Sclerotherapy may cause minor side effects such as mild itching, skin color changes, and swelling, but the procedure is relatively painless and doesn’t require any anesthesia. 

Laser therapy

One of our newer spider vein treatments involves laser energy. Instead of injecting an irritant into your vein to close it, this technique uses heat in the form of laser light.

During your appointment, we use strong bursts of focused laser energy that pass harmlessly and painlessly through your skin. While laser therapy doesn’t damage your skin or surrounding tissues, its heat reaches your unwanted spider veins and causes them to shrivel and disappear. Like sclerotherapy, you might experience mild redness, itching, and swelling after your treatment, but you should see your spider veins to fade in the next few weeks.

For the best results, we often recommend a series of treatments to erase your spider veins completely.

Find out how you can eliminate your spider veins at one of our convenient New York locations in Bay Ridge in Brooklyn, Washington Heights in Manhattan, Elmhurst in Queens, and Mount Hope in the Bronx. Contact us by calling VeinMedic or by scheduling an appointment online today.

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