Thread Vein Treatment (MICROSCLEROTHERAPY)


Up to half of all adults suffer from telangiectasia, thread-veins or ‘spider veins’. These are blood vessels that appear red, purple or blue and are clearly visible through the skin. If you are troubled by unsightly or uncomfortable thread-veins, they can usually be treated simply and effectively using Microsclerotherapy.

Microsclerotherapy is a treatment designed to tackle problem veins, from minor thread-veins to small varicose veins, through the injection of a liquid into the vein in order to destroy it. Sclerotherapy leads to the vein becoming inflamed and hard to the touch before being absorbed by the body.

The use of graduated compression hosiery supports and promotes the healing process. Immediately after treatment, a 10 minute walk is advised. This is followed by 72 hours continuous compression and then compression during the day for a further 2 weeks.

It is reasonable to expect a 40-80% improvement in the appearance of spider veins following a microsclerotherapy treatment, though in many cases, multiple treatments are required.

What side-effects may arise?

Common short-term side effects  include:-

  • Redness
  • Welts similar to insect bites appearing at the puncture sites
  • Prickling or itching sensation

These symptoms tend to subside within hours of the treatment, as long as the correct aftercare instructions are carried out.

Longer lasting side effects following microsclerotherapy include:-

  • Bruising and brown pigmentation of the treatment area - may occur in up to 15% of treatments and can 6-18 months to fade.
  • 'Telangiectatic matting' may arise when vessels are partially damaged and remain under pressure from feeding vessels, resembling a bruise. This usually settles, but may take 6-12 months. 

Rare but potentially significant side-effects include:-

  • Allergic reaction
  • Blood clot
  • Headache
  • Lower back pain
  • Fainting
  • Transient visual disturbance
  • Transient ischaemic attacks (extremely rare)

Is this treatment suitable for me?

Most patients are suitable to have microsclerotherapy but there are some groups who should not have, and would not benefit from treatment.

Contraindications to sclerotherapy include:-

  • Allergic sensitivity to the sclerosant
  • Pregnancy and breast-feeding mothers
  • Infection
  • Past history of deep venous thrombosis (DVT)
  • Severe arterial disease
  • Lymphoedema or chronic limb swelling
  • Varicose veins or skin changes associated with calf pump failure
  • Clotting disorders or prescribed anticoagulation
  • Immunodeficiency or use of immuno-suppressants such as steroids
  • Any condition that restricts mobility
  • Patients who are unable or unwilling to comply with post-sclerotherapy instructions regarding activity and use of compression bandages

How much does treatment cost?

A full patient history and examination will be required to establish suitability and safety for the procedure.


  • Brief assessment                                                                      £FREE
  • 1st treatment (includes pre-treatment assessment)        £250
  • 2nd and subsequent treatments                                          £200

Writing is easy. You just open a vein and bleed
— Paul Gallico

If you have any questions about the treatment or would like a callback to discuss, please complete the form below

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For further information on treating leg veins, watch this video by Dr Haroun Gajraj: