Laser vs Sclerotherapy for Spider Veins — Which Actually Works?

Medi-spas market laser as the modern fix for spider veins. For leg spider veins, the evidence says otherwise: sclerotherapy remains the gold standard, and laser is a second-line tool with a narrow role. Here is the honest comparison.

Why sclerotherapy wins on the legs

Leg spider veins are almost never isolated — they are fed by reticular veins a few millimetres below the surface. A surface laser only reaches the visible vessel; the feeder keeps pumping, and the veins return. Sclerotherapy treats the visible vein and its feeder in the same session, covers a far larger area per visit, and works across all skin types — leg lasers risk pigment changes in darker skin.

Where laser genuinely helps

Laser is the right tool for facial telangiectasias (where sclerosant injection is riskier), for vessels too fine for any needle, for post-sclerotherapy matting touch-ups, and for the rare patient who cannot tolerate injections. For larger feeding veins, foam sclerotherapy extends the reach of the standard technique.

What we recommend at Israel Vein Center

Every spider-vein consultation starts with a duplex ultrasound — if underlying reflux is feeding the spider veins, treating the surface alone (by any method) guarantees recurrence. Read more: are spider veins cosmetic or medical?

Frequently Asked Questions

Does laser work on leg spider veins?

It can fade very fine surface vessels, but on the legs laser treats only what is visible — not the feeding reticular veins underneath. That is why lasered leg spider veins commonly return. Sclerotherapy closes the feeder veins as well, which is why it remains the gold standard for legs.

When is laser the better choice?

For facial telangiectasias, for vessels finer than a needle can enter (under about 0.3 mm), for laser-assisted touch-ups after sclerotherapy, and for patients who cannot tolerate injections.

Is sclerotherapy more painful than laser?

Usually the opposite. Sclerotherapy feels like brief pinpricks; leg laser pulses are often described as a hot rubber-band snap and frequently need cooling. Neither requires anesthesia.

How many sclerotherapy sessions will I need?

Typically 1–3 sessions of about 30 minutes, from ₪1,500 per session, with results developing over several weeks as the treated veins fade.