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Vein Condition

Spider Veins: Causes, Symptoms & Treatment

Spider veins are small, web-like blood vessels visible just beneath the skin. While often considered cosmetic, they can cause discomfort and may signal deeper venous disease. Effective treatment is available with little to no downtime.

What Are Spider Veins?

Spider veins — medically known as telangiectasias — are tiny, dilated blood vessels that appear close to the skin surface. They form web-like, branching, or linear patterns and are typically red, blue, or purple in color.

They develop when small vein valves weaken and allow blood to pool, causing the vessel walls to expand. Spider veins are most common on the legs and face, and they affect an estimated 50–55% of women and 40–45% of men.

While spider veins are often dismissed as purely cosmetic, they can cause burning, itching, and aching — particularly after prolonged standing. In some cases, they indicate underlying venous insufficiency that requires medical treatment.

Signs & Symptoms

  • Red, blue, or purple web-like veins on legs or face
  • Burning or itching around the veins
  • Mild aching after prolonged standing
  • Skin discoloration in the affected area
  • Clusters of veins resembling a spider web or tree branches
  • Visible veins on thighs, calves, or ankles

Clear, Confident Legs Are Possible

Schedule a free vein screening with our specialists and get a personalized treatment plan.

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Frequently Asked Questions

Are spider veins dangerous?
Spider veins are generally not dangerous on their own, but they can be a sign of underlying venous insufficiency. They often cause burning, itching, and discomfort. A vein specialist can evaluate whether deeper venous disease is present.
Does insurance cover spider vein treatment?
Spider vein treatment is often considered cosmetic and may not be covered by insurance. However, if spider veins are associated with underlying venous insufficiency, treatment may be covered. Our team will verify your benefits before your appointment.
How many sclerotherapy sessions will I need?
Most patients need 2–4 sessions spaced 4–6 weeks apart for optimal results. The number depends on the extent and severity of your spider veins.
Do spider veins come back after treatment?
Treated spider veins do not return. However, new spider veins can develop over time due to genetics, hormonal changes, or lifestyle factors. Maintenance treatments can keep legs looking their best.
What is the difference between spider veins and varicose veins?
Spider veins are small, flat, web-like veins close to the skin surface. Varicose veins are larger, raised, and rope-like. Both are caused by venous reflux, but varicose veins indicate more advanced venous disease.
Is sclerotherapy painful?
Sclerotherapy involves small injections that cause mild stinging or cramping. Most patients tolerate the procedure well with no anesthesia required. Sessions typically take 15–30 minutes.

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