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A patient's guide to vein health The Vein GuideVein health, explained clearly 95 guides · Free to read

Section 03 of 06

Treatments Explained

Plain-language guides to modern vein treatments — radiofrequency ablation, VenaSeal, ClariVein, sclerotherapy, phlebectomy and surgery — how they work, who they suit and what they involve.

Articles in Treatments Explained

Gloved hand holding a thin medical catheter with a blue connector hub against a pale background

VenaSeal: How the Vein Glue Procedure Works

What VenaSeal is, how the medical glue closes a faulty vein, who it suits, what the procedure involves, its side effects and complications, and how it compares with radiofrequency ablation.

6 min read

Treatment has changed a lot

Many people still picture varicose vein treatment as “vein stripping” under general anaesthesia with weeks off work. Today most patients are treated with minimally invasive, needle-puncture procedures done under local anaesthetic in a clinic or day-surgery setting, and many walk out the same day.

How doctors choose a treatment

Every plan starts with a duplex ultrasound scan. This painless scan shows which veins are leaking, how badly, and their size and shape. The results — together with your symptoms, medical history and preferences — decide which option suits you:

  • Thermal ablation (radiofrequency or laser) seals the faulty vein with heat from inside.
  • Non-thermal options such as VenaSeal (medical adhesive) and ClariVein (mechanical plus chemical) avoid heat and the numbing injections that come with it.
  • Sclerotherapy uses an injected solution or foam to close smaller veins and spider veins.
  • Mini-phlebectomy removes bulging surface veins through tiny nicks in the skin.
  • Open surgery is now used much less often but still has a role in some cases.

International guidelines, including those of the European Society for Vascular Surgery, recommend endovenous (inside-the-vein) treatments as the first choice for most people with leaking main surface veins.