Spider veins and small varicose veins are common. Figuring out what treatment costs is surprisingly hard. Providers rarely post prices, insurance rules are inconsistent, and the number of sessions you need depends on factors that vary from person to person. If you are researching sclerotherapy and trying to build a realistic budget before your first appointment, this article covers the main cost drivers, what a typical treatment course looks like financially, and how to think about the insurance question.
What Sclerotherapy Actually Involves
Sclerotherapy is an injection-based treatment for spider veins and small-to-medium varicose veins. A physician injects a sclerosing solution directly into the affected vein, irritating the vessel wall and causing it to close. The treated vein fades over several weeks as your body reabsorbs it.
The procedure is done in a clinical setting, typically takes 30 to 60 minutes per session, and requires no anesthesia. Most patients need more than one session to clear a treatment area, and both legs are usually treated separately rather than in a single appointment.
The Main Factors That Drive Sclerotherapy Cost
No two sclerotherapy quotes look exactly alike. Here is why.
Number of Veins and Surface Area
The more veins you have, and the larger the area they cover, the more sessions you will need. A single cluster of spider veins on one ankle is a very different scope from bilateral spider veins covering the thighs and calves. Providers often price by session rather than by vein count, so the number of appointments you require is the biggest cost multiplier.
Cosmetic vs. Medically Necessary Treatment
This distinction matters enormously for your out-of-pocket cost.
Spider vein treatment is almost always classified as cosmetic, which means insurance will not cover it. You pay the full session fee yourself.
Varicose vein treatment may qualify as medically necessary if you have documented symptoms such as leg pain, swelling, heaviness, skin changes, or ulceration. When a physician determines the veins are causing a medical problem, insurance often covers part or all of the treatment after your deductible. The coverage decision depends on your specific plan, the diagnosis codes used, and whether you have completed any required conservative treatment — such as wearing compression stockings for a set period — before the insurer will approve the procedure.
If you have both cosmetic spider veins and symptomatic varicose veins, you may end up with a split bill: some sessions covered, others not.
Provider Type and Setting
Sclerotherapy performed by a board-certified vascular physician in a clinical setting typically costs more per session than the same procedure at a general medspa. That difference reflects the level of training, the diagnostic infrastructure, and the ability to manage complications if they arise. For a procedure that involves injections into blood vessels, provider credentials are worth factoring into your decision alongside price.
Geographic Market
Costs in the Seattle and Eastside metro area reflect regional overhead, which tends to run higher than national averages. Comparing a quote from a Bellevue vascular clinic to a national average figure you found online is unlikely to give you a useful benchmark.
Solution Type
Most sclerotherapy uses liquid sclerosant. Foam sclerotherapy — used for larger or more stubborn veins — may carry a different fee because it requires more preparation and is typically reserved for veins that do not respond well to standard injection.
What a Typical Treatment Course Looks Like
For a single leg with mild-to-moderate spider veins, most patients need two to four sessions spaced four to six weeks apart. Treating both legs doubles that estimate. Larger or deeper varicose veins may require additional sessions or a combination approach.
The practical implication: when you ask a provider for a cost estimate, ask for the expected total course of treatment, not just the per-session fee. A lower per-session price with more required sessions can easily exceed a higher per-session price with fewer visits.
Does Insurance Cover Sclerotherapy?
For spider veins: generally no. These are considered cosmetic.
For varicose veins with documented symptoms: possibly, but it depends on your insurer, your diagnosis, and whether you have met any prerequisite steps your plan requires. Common prerequisites include a period of conservative management, a venous ultrasound to document reflux, and a referral or prior authorization.
If you are pursuing treatment for symptomatic varicose veins, the most important first step is a consultation with a physician who can document your symptoms properly and submit the right diagnostic codes. A vascular ultrasound is usually required as part of this process. Clinics that offer ultrasound in-house can complete this step without sending you to a separate imaging facility.
What to Ask Before You Book
Walking into a consultation with the right questions saves time and prevents billing surprises.
- Is my treatment likely to be cosmetic or medically necessary based on my symptoms?
- Will I need a vascular ultrasound before treatment, and is that done here?
- How many sessions do you estimate I will need for both legs?
- What is the fee structure: per session, per leg, or per vein cluster?
- If I have insurance, will you submit a prior authorization request?
- What happens if I need more sessions than initially estimated?
A provider who gives you clear answers before you commit is a good sign. Vague answers about total cost are worth pressing on.
Sclerotherapy at a Vascular Clinic vs. a Medspa
This distinction matters more than it might seem. Many medspas offer sclerotherapy for spider veins, and for purely cosmetic treatment of superficial veins, that can be a reasonable option. But if you have any varicose veins, leg symptoms, or a family history of venous disease, a vascular physician is the more appropriate provider.
A vascular physician can perform a duplex ultrasound to assess whether there is underlying venous reflux driving your visible veins. If reflux is present and goes untreated, surface sclerotherapy may produce temporary cosmetic improvement while the underlying problem continues. A medspa cannot diagnose or treat that underlying condition.
At VIVAA in Bellevue, sclerotherapy is offered within a full vascular surgery practice. Both treating physicians are board-certified, and the clinic has been serving the Eastside since 2015. A patient can move from initial consultation to diagnostic ultrasound to treatment without leaving the practice — which matters both for continuity of care and for insurance documentation if your veins qualify as medically necessary.
Planning Your Budget
Because pricing is not publicly listed at most vascular clinics, the only reliable way to get a number is through a consultation. What you can do beforehand is estimate your likely scope.
If you have spider veins only, on one leg, with no symptoms: you are looking at a cosmetic, out-of-pocket treatment course — likely two to four sessions.
If you have visible varicose veins, leg aching, swelling, or skin changes: you may have a path to partial insurance coverage, but it requires a physician evaluation and possibly a prior authorization process.
If you have both: expect a mixed picture. Ask your provider to separate the cosmetic and medical components of your treatment plan clearly.
Sclerotherapy cost is not a single number. It is a function of your vein burden, your insurance situation, your provider's fee structure, and how many sessions your legs actually need. Getting that picture right starts with a thorough consultation, not a price list.
If you are ready to understand what treatment would look like for your specific situation, schedule a consultation at VIVAA to speak with a board-certified physician and get a clear picture of your options.
Frequently Asked Questions
How much does sclerotherapy cost per session? Session fees vary based on provider type, geographic market, and the scope of treatment. Spider vein sessions at a vascular clinic in the Seattle and Eastside area typically cost more than national averages due to regional overhead. The only reliable way to get an accurate figure is through a consultation with the treating provider.
How many sclerotherapy sessions will I need for both legs? Most patients with mild-to-moderate spider veins need two to four sessions per leg, spaced four to six weeks apart. Treating both legs means planning for four to eight sessions total as a rough baseline. More extensive vein involvement or larger varicose veins can increase that number.
Is sclerotherapy covered by insurance? Spider vein treatment is almost always classified as cosmetic and is not covered. Varicose vein treatment may be covered when a physician documents medical necessity — such as pain, swelling, or skin changes. Coverage also depends on your specific plan and whether you have completed any required conservative treatment steps beforehand.
What is the difference between sclerotherapy for spider veins and varicose veins? Spider veins are small, superficial, and treated primarily for cosmetic reasons. Varicose veins are larger, may involve underlying venous reflux, and can cause physical symptoms. Varicose vein sclerotherapy often requires a diagnostic ultrasound first and may involve foam sclerosant rather than liquid. The clinical evaluation, documentation, and insurance pathway are also different.
Do I need a vascular ultrasound before sclerotherapy? For cosmetic spider vein treatment, an ultrasound is not always required. For varicose veins or any veins accompanied by symptoms, a duplex ultrasound is typically necessary to assess whether venous reflux is present. Without that assessment, surface treatment alone may not address the root cause.
Can I get sclerotherapy at a medspa instead of a vascular clinic? Some medspas offer sclerotherapy for superficial spider veins, and if your concern is purely cosmetic and limited to small surface veins, that may be an option. If you have varicose veins, leg symptoms, or a family history of venous disease, a board-certified vascular physician is the more appropriate provider — they can diagnose and treat any underlying venous condition a medspa cannot.
How long do sclerotherapy results last? Treated veins that close successfully do not reopen. However, new veins can develop over time, particularly if you have a genetic predisposition to venous disease or spend significant time on your feet. Some patients return for maintenance sessions every one to two years. A physician can give you a more specific outlook based on your vein pattern and any underlying reflux.
