What Causes Spider Veins On Legs?

If you have noticed blue or purple veins creeping up on your legs, you may be experiencing spider veins. These small, twisted blood vessels can be unsightly and sometimes cause discomfort. At New York Vein Treatment, we understand how these spider veins can affect your confidence and quality of life. In this article, we will discuss what causes spider veins on legs, how to prevent them, and the various treatments available.

What Are Spider Veins?

Spider veins are small, twisted blood vessels that appear just beneath the skin’s surface. They are most commonly found on the legs and face and can be blue, purple, or red. Spider veins are not always harmful, but they can be unsightly and sometimes cause discomfort or aching in the legs. In some cases, spider veins can also be symptomatic of a dangerous underlying medical condition known as chronic venous insufficiency, which is caused by collapsed vein valves that allow blood to pool in the leg veins, leading to vascular dilation and the formation of spider veins and varicose veins.

What Causes Spider Veins on Legs?

Several factors can increase the risk of developing spider veins, including:

  • Age: As you age, the risk of developing spider veins increases as the valves in your veins weaken over time. This can cause blood to flow backward and pool in the veins, resulting in spider veins.
  • Genetics: If your parents or grandparents had spider veins, you may be more likely to develop them as well. Family history is a significant risk factor for spider veins, and genetic predisposition can play a role in their development.
  • Hormonal changes: Hormonal changes during pregnancy, menopause, or taking birth control pills can also increase the risk of developing spider veins. The hormones can weaken the vein walls, causing them to dilate and resulting in spider veins.
  • Obesity: Carrying excess weight puts additional pressure on your veins, making it harder for blood to circulate properly. This can cause the veins to become enlarged and twist, resulting in spider veins.
  • Prolonged sitting or standing: Sitting or standing for long periods puts pressure on your veins, causing blood to pool and increasing the risk of spider veins. This is because the muscles that help circulate blood in your legs are not being used, and the blood can’t flow as efficiently, resulting in spider veins.
What causes spider veins on legs? Learn about what causes spider veins on legs, risk factors, and treatments available at New York Vein Treatment. Schedule an appointment today.

Spider Veins & Chronic Venous Insufficiency

While spider veins are generally harmless, they can sometimes indicate an underlying condition, such as chronic venous insufficiency (CVI). CVI is a condition where the valves in your veins don’t function correctly, causing blood to pool and veins to enlarge. This can lead to symptoms such as swelling, leg pain, and skin changes, such as discoloration or ulcers. In some cases, spider veins can be a symptom of CVI, indicating that the underlying condition is more severe.

If you have spider veins along with other symptoms, such as swelling, pain, or skin changes, you should seek medical attention to rule out CVI. At New York Vein Treatment, our board-certified vein doctors will diagnose the root cause of your spider veins and ensure you receive the appropriate treatment to address any underlying conditions. Don’t hesitate to seek medical attention if you’re experiencing any symptoms, as early intervention can prevent more severe complications from developing.

How to Prevent Spider Veins

While it may not be possible to prevent spider veins altogether, there are several things you can do to reduce your risk:

  • Exercise regularly: Regular exercise helps improve circulation and keeps blood flowing through your veins.
  • Maintain a healthy weight: Losing weight and maintaining a healthy weight reduces the pressure on your veins.
  • Elevate your legs: Elevating your legs above your heart can help reduce swelling and improve circulation.
  • Wear compression stockings: Compression stockings help improve circulation and prevent blood from pooling in your veins.


Experiencing symptoms of vein disease? Book an appointment with one of the our Vein Specialists in New York.

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Sclerotherapy Treatment for Spider Veins

Sclerotherapy is a popular and effective treatment for spider veins. During the procedure, a solution is injected into the affected veins, causing them to collapse and fade from view over time. Sclerotherapy is a minimally invasive procedure that is typically performed in an office setting, and most patients can resume normal activities immediately after treatment. The procedure is generally well-tolerated, with little to no discomfort or downtime.

Sclerotherapy can be used to treat spider veins and small varicose veins. While multiple treatments may be necessary to achieve optimal results, many patients notice a significant improvement in the appearance of their spider veins after just one treatment. At New York Vein Treatment, our board-certified vein doctors will evaluate your spider veins and determine if sclerotherapy is the best treatment option for you.

Our board-certified vein doctors will diagnose the root cause of your spider veins and curate a personalized treatment plan to ensure the best possible results. If your spider veins are caused by underlying chronic venous insufficiency, our vein doctors may also recommend radiofrequency ablation, endovenous laser ablation, venaseal, or other minimally invasive procedures that address underlying chronic venous insufficiency.

When to Seek Treatment for Spider Veins

While spider veins are generally harmless, they can sometimes cause discomfort or indicate an underlying condition, such as chronic venous insufficiency. If you experience the following symptoms, you should seek treatment:

  • Pain or aching in the legs
  • Swollen veins on the buttocks
  • Broken capillaries on the feet
  • Green veins that appear on the surface of the skin
  • Varicose veins on black skin
  • Untreated varicose veins

New York Vein Treatment has two convenient locations in Midtown Manhattan and the Financial District. Our Midtown Manhattan location is across from Grand Central Station and within walking distance from several landmarks, including Empire State Building, Bryant Park, and Madison Square Park. Our Financial District location is close to the New York Stock Exchange and The Seaport.

We offer free insurance verification even before your first appointment, and our board-certified vein doctors will diagnose the root cause of your spider veins before curating a personalized treatment plan. Contact us today to schedule an appointment at one of our locations and take the first step toward achieving smoother and healthier legs.




Veins Specialist NYC

He leads the team of vein doctors offering the highest level of care at our Spider and Varicose Vein Treatment Center NYC.



Veins Specialists NYC

She is an expert in Spider Vein and Varicose Vein Treatment based in New York City.



Veins Specialists NYC

Highly sought after for his expertise and excellent outcomes in Vein Treatments in Manhattan.



Veins Specialists NYC

She has extensive experience with vein performing procedures based on New York City.


Dr. Caroline Novak

Veins Specialists NYC

She is an Internal Medicine and Vein Disease specialist with experience in minimally invasive treatments at our Long Island clinic.


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