Private foam sclerotherapy and thread vein treatment cost in the UK: 2026 price guide

Private sclerotherapy injects a foam or liquid into small varicose veins or thread veins so that they close and fade, and is used for tributary veins, thread veins on the legs and sometimes small faulty veins unsuitable for heat treatment.

The range in the published self-pay lists for foam sclerotherapy and thread vein treatment was £275 to £2,295. That spread reflects different hospitals, different variants and different ideas of what belongs in a package, so the table names each one.

Lists are revised from time to time and sit alongside conditions in the small print. The figures help you see where a quote falls, but they cannot replace your own estimate.

Using a fine needle, the clinician injects foam into the vein, often watching on ultrasound, then applies compression. The treatment takes a short time and you can walk out.

Because several sessions are common for thread veins, ask what a full course costs rather than a single session.

Two patients having the same operation or test can receive quite different bills. For foam sclerotherapy and thread vein treatment, these are the factors that most often explain the gap.

• Vein size and number: foam for larger veins needs ultrasound guidance and more product than cosmetic treatment of thread veins.

• Number of sessions: thread veins often need repeated treatments.

• Hospital pricing: Ramsay Duchy lists foam sclerotherapy at £1,495 for one leg and £2,295 for both legs, and thread veins at £275 for the legs and £375 for the face.

• Ultrasound guidance and a clinician rather than a technician.

• Compression and follow-up reviews.

Ask for the inclusions in writing. For this procedure the usual split between what is covered and what is charged on top looks like this.

Insurers seldom fund thread vein treatment and may fund foam sclerotherapy only for symptomatic varicose veins, so check before treatment.

Check whether your insurer recognises the exact procedure and the consultant you plan to see, and ask for any excess in writing. Self-funders can usually ask about finance, but terms depend on credit checks and should be read closely.

The NHS does not usually treat thread veins, and foam sclerotherapy is offered for symptomatic varicose veins meeting local criteria.

Many people consider private care because of NHS waiting times, but the NHS route costs nothing at the point of use and the 18-week standard applies to non-urgent consultant-led pathways. Local performance varies.

You walk straight away and wear compression for some days, with bruising and tenderness settling over a couple of weeks.

The risks below are the ones that can turn a quoted price into a larger bill, so ask how each would be dealt with.

• Staining, matting of new tiny veins and, rarely, allergic reactions or clots can occur, and treated veins may reopen; ask how many sessions are likely.

• Cosmetic thread vein treatment is usually not covered by insurers, so budget on that basis.

Write the answers down as you go. These are the questions that tend to separate similar-looking quotes for this procedure.

• How many sessions will I need and what does a course cost?

• Is ultrasound guidance used?

• Is compression included?

• Is my treatment cosmetic or medical, and what does that mean for insurance?

• Is every fee in the quote guaranteed, or could consultant and anaesthetist charges differ from the estimate on the day?