Varicose Vein Surgery

Introduction

If you have been told that you have varicose veins and your doctor has suggested treatment, you are not alone. Varicose veins are one of the most common vascular problems in adults, and the way they are treated has changed considerably over the last two decades. What used to require a long hospital stay and a large incision in the groin can now often be done through a tiny puncture in the leg, under local anaesthesia, with a walk-in walk-out experience.

This guide is written for people who already have a diagnosis of varicose veins and are now thinking about the next step. It explains what varicose vein surgery actually means today, the different procedures that fall under that umbrella, when each option is typically chosen, what happens before and during treatment, how recovery usually unfolds, and what life looks like afterwards. The goal is to help you have a more informed conversation with your vascular specialist, not to replace that conversation.

What Is Varicose Vein Surgery?

“Varicose vein surgery” is an umbrella term for a group of procedures that treat enlarged, twisted veins in the legs by either removing them or closing them off so that blood is redirected through healthier veins. Despite the word “surgery,” many of these procedures are not traditional cuts-and-stitches operations. Most are now done through small punctures using catheters, lasers, radiofrequency probes, or injections.

To understand why these procedures work, it helps to know what is going wrong inside a varicose vein. Veins in the legs have tiny one-way valves that keep blood moving upward toward the heart, against gravity. When these valves stop closing properly, blood leaks backward and pools in the vein — a problem called venous reflux. Over time, the pooling stretches the vein, making it visibly bulge under the skin, and increases pressure in the leg, leading to symptoms such as aching, heaviness, swelling, and skin changes.

The principle behind every form of varicose vein surgery is the same: stop the faulty vein from carrying blood. Once that vein is removed or sealed, the body naturally reroutes blood through deeper, healthy veins. Surface circulation continues normally because the leg has many overlapping vein networks.

Why Varicose Vein Surgery Is Performed

Not everyone with varicose veins needs a procedure. Many people manage well for years with conservative measures alone. Doctors typically consider intervention when varicose veins are causing meaningful symptoms or starting to damage the skin and tissues of the lower leg.

Common reasons treatment is offered include:

• Persistent leg pain, aching, or heaviness that interferes with work, sleep, or daily activities and does not improve with compression stockings.
• Swelling of the ankles or lower legs caused by venous reflux.
• Skin changes such as brown discolouration, eczema-like rashes (venous eczema), or hardening of the skin (lipodermatosclerosis).
• Bleeding from a varicose vein, which can happen if a thin-walled bulging vein near the surface is bumped or scratched.
• Superficial thrombophlebitis — clotting and inflammation inside a varicose vein, causing a red, tender, cord-like swelling.
• Venous leg ulcers, either active or healed. Major guidelines, including those from NICE in the UK and the European Society for Vascular Surgery, support early treatment of underlying venous reflux in patients with ulcers to speed healing and reduce recurrence.
• Significant cosmetic concern in some patients, although this is generally considered a secondary indication.

Cosmetic appearance alone is a valid reason to seek consultation, but whether and how to treat is a clinical decision that takes the full picture into account — symptoms, ultrasound findings, skin condition, and your overall health.

Who Is a Candidate?

Most adults with symptomatic varicose veins and confirmed venous reflux on ultrasound are candidates for one of the modern treatment options. The specific choice depends on:

• Which vein is affected. The great saphenous vein, the small saphenous vein, perforator veins, and surface tributaries each behave differently and may be treated with different techniques.
• The size and course of the vein. Very large, very twisted, or very superficial veins may not be ideal for certain catheter-based techniques.
• Skin condition over the vein. Treatment near areas of broken skin or active ulcer requires careful planning.
• Other medical conditions. Blood clotting disorders, pregnancy, severe peripheral artery disease, or active deep vein thrombosis influence what is safe and when.
• Previous treatment. If varicose veins have been treated before and recurred, the approach may be different second time around.

Pregnancy is generally a reason to delay elective vein treatment. Many varicose veins that develop during pregnancy improve in the months after delivery, and definitive treatment is usually offered only if the problem persists.

Alternatives to Surgery

Before any procedure, doctors typically recommend a period of conservative management, particularly when symptoms are mild. These approaches do not make existing varicose veins disappear, but they can ease symptoms and slow progression.

Compression Stockings

Graduated compression stockings squeeze more tightly at the ankle and less so further up the leg, helping push blood upward and reducing pooling. They are the cornerstone of conservative treatment for venous disease and are also used after most vein procedures. Compression alone will not cure varicose veins, but it can meaningfully reduce aching, heaviness, and swelling.

Lifestyle Measures

Walking regularly, avoiding long periods of standing still, elevating the legs when resting, maintaining a healthy weight, and staying well hydrated all support venous return from the legs. Calf muscle activity is essentially the leg's “second heart” for venous blood, so movement matters.

Skin Care

For people with skin changes from venous disease, moisturisers and careful skin care help prevent breakdown. If there is itching or eczema, a dermatologist or vascular team may suggest treatment for the skin alongside addressing the underlying veins.

Conservative care is reasonable as a first step. However, current guidelines from major societies, including NICE and the European Society for Vascular Surgery, generally favour endovenous procedures over indefinite compression alone in patients with confirmed reflux and meaningful symptoms, because the procedural options address the cause rather than just the consequences.

Procedural Approaches

Endovenous Laser Ablation (EVLA / EVLT)

Endovenous laser ablation uses heat from a laser fibre to seal a faulty vein from the inside. Under ultrasound guidance, a thin catheter is threaded into the vein through a tiny puncture. Local anaesthetic fluid is injected around the vein along its length (a step called tumescent anaesthesia), which protects surrounding tissues and pushes blood out of the vein. The laser fibre is then slowly withdrawn, heating the vein wall and causing it to close.

EVLA is widely used for reflux in the great saphenous and small saphenous veins. The procedure is typically done under local anaesthesia, takes around an hour, and most people walk out the same day. NICE guidance lists endothermal ablation (EVLA and radiofrequency ablation) as the first-line option for truncal varicose veins.

Radiofrequency Ablation (RFA)

Radiofrequency ablation works on the same principle as laser ablation but uses heat from radio waves instead of light. A specially designed catheter is placed inside the vein and heats segments of the vein wall in short pulses, sealing it shut. The patient experience is similar to EVLA: local anaesthesia, walk-in walk-out, and recovery measured in days rather than weeks.

EVLA and RFA produce very similar long-term closure rates. Some studies suggest RFA may cause slightly less post-procedure bruising and discomfort, while others find no meaningful difference. The choice between them often comes down to local availability and surgeon preference.

Sclerotherapy

Sclerotherapy involves injecting a chemical solution (sclerosant) into a vein, which irritates the lining and causes the vein to close. There are two main forms:

• Liquid sclerotherapy is used for small surface veins and spider veins.
• Ultrasound-guided foam sclerotherapy is used for larger varicose veins. The sclerosant is mixed with air or gas into a foam, which displaces blood inside the vein and gives the medication better contact with the vein wall.

Foam sclerotherapy can be used as a primary treatment, as a complement to laser or radiofrequency ablation for tributary veins, or for residual veins after a previous procedure. It is particularly useful for veins below the knee, twisted clusters, and small recurrent veins. Multiple sessions are sometimes needed.

Cyanoacrylate Vein Closure (Medical Glue)

One of the newer non-thermal techniques uses a medical-grade adhesive (cyanoacrylate) delivered through a catheter to seal the vein. Because no heat is used, tumescent anaesthesia is not required, and the risk of nerve injury near certain veins is reduced. Compression stockings may not be needed afterwards, though practice varies.

Glue closure is suitable for some patients with truncal vein reflux. It is not appropriate for everyone, and availability depends on the centre.

Mechanochemical Ablation (MOCA)

Mechanochemical ablation combines a rotating catheter wire that scrapes the inside of the vein with simultaneous injection of a sclerosant. Like glue closure, it avoids heat and does not require tumescent anaesthesia. It is another option for truncal vein reflux in selected patients.

Ambulatory Phlebectomy

Ambulatory phlebectomy, sometimes called stab avulsion or microphlebectomy, is used to remove bulging surface veins through a series of tiny pinhole incisions, usually 1–3 mm. A small hook is used to lift out short segments of the vein. The incisions are so small they usually do not need stitches and heal as faint dots.

Open surgery was the standard treatment for decades and is still used in selected situations — for example, very large veins, anatomy that is unsuitable for catheter techniques, or when other approaches have failed. The classic operation involves:

• High ligation — tying off the faulty vein at the point where it joins a deep vein, usually in the groin or behind the knee.
• Stripping — passing a thin instrument inside the vein and pulling out the affected segment through a small incision lower down the leg.

Open surgery is typically done under general or spinal anaesthesia. Recovery takes longer than with endovenous techniques, and bruising is usually more pronounced. Long-term effectiveness is comparable to ablation, but because of the longer recovery and slightly higher risk of complications, endothermal ablation has replaced stripping as the first-line approach in most modern guidelines.

Preparing for Varicose Vein Surgery

Preparation is usually straightforward. Your vascular specialist will:

• Perform a duplex ultrasound scan of the leg veins. This is the most important pre-treatment investigation. It maps which veins are refluxing, identifies the source of the problem, and rules out deep vein thrombosis.
• Review your medical history and medications. Blood-thinning medications, hormonal therapies, and any history of clotting problems are relevant.
• Discuss the procedure options based on your anatomy and preferences.
• Plan anaesthesia. Most endovenous procedures are done under local anaesthesia. Open surgery typically requires general or spinal anaesthesia.

In the days before the procedure, you may be advised to:

• Continue regular medications unless told otherwise. Blood thinners are sometimes paused, but this depends on the medication and your overall risk — never stop them without medical advice.
• Arrange transport home, particularly if sedation or general anaesthesia is planned.
• Bring or wear loose-fitting clothing that fits over a compression stocking.
• Shave or avoid shaving the leg according to your team's instructions.
• Eat normally before local anaesthetic procedures; follow fasting instructions if general or spinal anaesthesia is planned.

What Happens During the Procedure

Although the details vary, most varicose vein procedures follow a similar pattern.

You will be positioned on a treatment table, usually lying on your back or front depending on which vein is being treated. The leg is cleaned and draped. Ultrasound is used throughout to guide the catheter and confirm correct positioning.

For endovenous procedures (laser, radiofrequency, glue, or MOCA), a small amount of local anaesthetic is injected at the puncture site. A thin needle is used to enter the vein, and a guidewire and catheter are passed along it. For thermal ablation, tumescent anaesthesia is then injected along the length of the vein. The vein is closed segment by segment as the catheter is withdrawn.

If you are also having ambulatory phlebectomy, the surgeon will mark the bulging surface veins beforehand (often while you are standing, so the veins fill). Tiny puncture incisions are made and the vein segments are gently teased out.

If foam sclerotherapy is being used, a fine needle is inserted into the target vein under ultrasound guidance, and the foam is slowly injected.

For open surgery under general or spinal anaesthesia, you will be unconscious or numbed from the waist down. An incision is made in the groin or behind the knee to tie off the vein, and a second small incision lower down allows the vein to be stripped out.

Most endovenous procedures take between 45 minutes and 90 minutes, depending on the number of veins being treated. Open surgery takes a similar amount of time but involves additional preparation and recovery from anaesthesia.

Recovery and Healing

The First Day

After endovenous procedures, you can walk immediately and are usually discharged within a couple of hours. Walking is actively encouraged because muscle activity helps prevent clots and supports healing. A compression stocking or bandage is applied before you leave.

You may feel some tightness, mild aching, or a pulling sensation along the treated vein. Most people manage this with paracetamol or another mild pain reliever.

After open surgery, you may stay in hospital overnight. Once you are steady on your feet and pain is controlled, you can go home.

The First Week

Bruising along the treated vein is common and can look more dramatic than it feels. It usually fades over two to three weeks. A firm, tender cord along the line of the treated vein is also normal — this is the closed vein, and it gradually softens and is reabsorbed by the body over several months.

Most people return to office-type work within a few days after endovenous procedures. Recovery from open surgery is longer, typically one to three weeks before returning to work.

Compression Stockings

Compression is worn after almost all vein procedures, although the exact protocol varies. A common pattern is continuous wear (day and night) for the first 24–48 hours, then daytime wear for one to two weeks. Your team will give you specific instructions.

Returning to Activity

Walking is encouraged from day one. Light exercise can usually resume within a few days. More strenuous exercise, heavy lifting, and long-haul flights are typically avoided for two to four weeks after treatment to reduce the risk of deep vein thrombosis. Swimming is delayed until puncture sites are fully healed.

Follow-up

Risks and Complications

Modern varicose vein procedures are considered safe, but no procedure is without risk. Most complications are minor and resolve on their own.

Common, usually self-limiting effects include:

• Bruising along the treated vein.
• Discomfort or tightness in the treated area for a few weeks.
• Skin discolouration along the line of the vein, which usually fades over months.
• Numb patches or altered sensation in small areas of skin, due to irritation of nearby sensory nerves. This is more common with thermal ablation of the small saphenous vein.
• Phlebitis — inflammation in the treated vein, sometimes accompanied by a tender lump.

Less common but more important complications include:

• Deep vein thrombosis (DVT) — a clot in a deep vein. Modern endovenous procedures have a low rate, but it remains a recognised risk, particularly in people with additional risk factors.
• Endovenous heat-induced thrombosis (EHIT) — a clot extending from a treated superficial vein into the adjacent deep vein. Usually detected on follow-up ultrasound and managed with monitoring or blood thinners.
• Skin burns — rare with proper tumescent anaesthesia.
• Infection at puncture or incision sites — uncommon and usually treated with antibiotics.
• Nerve injury causing persistent numbness or rarely pain — most common near the ankle and behind the knee.
• Allergic reaction to sclerosant or glue — uncommon but possible.
• Visual disturbance, headache, or chest tightness after foam sclerotherapy — usually transient.

Open surgery carries the additional risks associated with general or spinal anaesthesia, larger incisions, more bruising, and a slightly higher rate of wound complications.

Life After Varicose Vein Surgery

Most people notice improvement in symptoms — less aching, less heaviness, less swelling — within a few weeks. The cosmetic appearance continues to improve for several months as bruising fades and the closed veins are gradually absorbed.

However, treating varicose veins does not change the underlying tendency to develop them. New varicose veins can appear in other vein networks over the years that follow. This is called neovascularisation or simply development of new disease. Reported rates of new or recurrent varicose veins vary widely between studies, but it is common enough that long-term lifestyle measures and follow-up are worthwhile.

Steps that help maintain results include:

• Walking and other regular physical activity.
• Avoiding very long periods of standing still or sitting still without moving your calf muscles. If your work involves this, brief regular movement breaks help.
• Maintaining a healthy weight.
• Elevating the legs when resting.
• Using compression stockings on long flights or long days of standing, particularly if recommended by your specialist.
• Stopping smoking, which supports vascular health generally.

If new varicose veins develop in the future, they can usually be treated with the same range of techniques. Many patients have one or two top-up sessions of sclerotherapy over the years to manage small new tributaries.

Skin Healing After Venous Ulcers

If you were treated partly because of a venous leg ulcer, the ulcer itself is managed with wound care, compression bandaging, and treatment of any infection. Closing the refluxing vein helps the ulcer heal and reduces the chance of new ulcers forming. Long-term compression and skin care remain important even after the ulcer has healed.

Frequently Asked Questions

Is varicose vein surgery painful?

Most modern procedures are done under local anaesthesia, and patients describe the experience as uncomfortable rather than painful. The tumescent anaesthesia injections feel like several small stings. Afterwards, there is usually mild aching and tightness for a week or two, which most people manage with simple pain relievers.

How long until I can go back to work?

After endovenous procedures (laser, radiofrequency, glue, MOCA, foam sclerotherapy), many people return to office-type work within one to three days. Jobs involving heavy lifting or long periods of standing may require one to two weeks. Recovery from open vein stripping is longer, typically two to three weeks.

Will my varicose veins come back?

The treated vein is unlikely to reopen, but new varicose veins can develop in other parts of the leg vein network over time. The tendency to varicose veins does not disappear with treatment. Lifestyle measures and regular check-ups help, and new veins can be treated with the same techniques if needed.

Are spider veins the same as varicose veins?

Spider veins are tiny red or purple veins just under the surface of the skin. Varicose veins are larger, twisted, and bulge above the skin. Spider veins are usually a cosmetic issue and are most often treated with small-needle sclerotherapy or surface laser. Varicose veins involve deeper, larger veins and require treatment of the underlying reflux to be effective.

Is there a non-surgical way to make varicose veins disappear?

Once a vein has become varicose, it does not return to normal on its own. Compression stockings, exercise, weight management, and leg elevation can reduce symptoms and slow progression, but they do not remove existing varicose veins. The only ways to remove or close a varicose vein are procedural.

Can both legs be treated on the same day?

In many cases, yes — particularly with endovenous techniques. Your specialist will decide based on the extent of disease, the time the procedure will take, and what is safe for you. Some patients prefer to treat one leg at a time for comfort during recovery.

Do I need general anaesthesia?

Usually not. Most endovenous procedures — laser, radiofrequency, glue, mechanochemical ablation, foam sclerotherapy, and ambulatory phlebectomy — are performed under local anaesthesia. General or spinal anaesthesia is mainly reserved for open vein stripping or when extensive combined treatment is being done.

Can I fly after varicose vein surgery?

Short flights are usually fine after a few days, but long-haul flights are generally avoided for two to four weeks because of the small risk of deep vein thrombosis. Your specialist may suggest wearing compression stockings, staying hydrated, and moving regularly during the flight when you do travel.

Can varicose veins be dangerous if left untreated?

Many varicose veins remain a quality-of-life problem rather than a dangerous one. However, untreated reflux can progress to chronic venous insufficiency, skin damage, and venous leg ulcers, which are difficult to heal. Varicose veins can also bleed if injured, and rarely develop clots (superficial thrombophlebitis). Whether treatment is needed depends on symptoms, skin condition, and ultrasound findings.

Conclusion

Varicose vein surgery today looks very different from the operation it used to be. For most patients, treatment now means a walk-in walk-out procedure under local anaesthesia, with a return to normal activity in days rather than weeks. Endovenous laser and radiofrequency ablation, foam sclerotherapy, glue closure, mechanochemical ablation, and small-incision phlebectomy each have a place, and the right combination depends on the anatomy of your veins, your symptoms, and your overall health.

The decision about which approach suits you best is made together with a vascular specialist, after a duplex ultrasound scan and a careful conversation about your goals. With modern techniques and good follow-up care, most people experience meaningful symptom relief, improved leg comfort, and a cosmetic outcome they are satisfied with — while also taking the steps that help keep their leg veins healthy for the long term.