Ultrasound-guided Foam Sclerotherapy

Ultrasound-guided foam sclerotherapy is a procedure to treat varicose veins using ultrasound to guide the injection of foam into the vein.

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endovascular procedures
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cure rate for varicose veins
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Feeling embarrassed with what you wear? Low self-confidence during summertime? Constant leg pain? Why put up with it when you don’t have to? With over 500 procedures a year, we are your Northern Beaches and North Shore vein specialists.

What is ultrasound-guided foam sclerotherapy?

Ultrasound-guided foam sclerotherapy (UGFS) is a minimally invasive treatment option for the treatment of varicose veins. It involves injecting a solution (called a sclerosant) into a vein. The solution irritates the lining of the diseased vein causing the vein to turn into scar tissue and fade. The procedure is highly tolerable and able to be performed in an outpatient setting in our custom-built clinic. 

ultrasound guided foam sclerotherapy

How is UGFS performed?

  1. Under ultrasound guidance, foam is injected via a needle into the diseased vein.
  2. Foam damages the cells lining the wall of the diseased vein causing them to stick together.

Recovery time

Patients are able to return to normal activities immediately post-procedure.

How long does the procedure take?

The procedure takes approximately 30-60 minutes.


Treatments are followed by application of compression stockings, which must be worn for approximately 2 weeks post-procedure. 


Microsclerotherapy is the technique used to treat spider veins or thread veins of the legs. It involves the meticulous injection of a liquid sclerosant solution into the target diseased veins, destroying them and causing them to disappear over time. Microsclerotherapy treatment is often performed with the aid of magnification or an infrared vein mapping device. The treatment is often performed with the aid of magnification or an infrared vein mapping device.


All patients require an initial consultation with Dr McConnell to get a complete medical history and venous system evaluation. Dr McConnell will discuss findings, treatment options, costs, as well as suggest a personalized treatment plan to best treat and remove your spider or thread veins. If you choose to have Microsclerotherapy treatment, a treatment appointment will be booked.

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Microsclerotherapy – The Procedure

  • Under direct visualisation, a very fine needle is inserted into the diseased spider veins or thread veins.
  • A solution (sclerosant) is injected into the diseased vein resulting in damage to the inner lining (intima) of the diseased vein. This causes the vein to collapse and over time the treated vein is resorbed by the body.
  • Multiple injections may be required depending on the extent of venous disease.
  • The procedure takes approximately 30-60 minutes.

Depending on the severity of your spider veins you may require more than one microsclerotherapy treatment. Appointments are usually spaced out over several weeks.


  • A compression stocking should be worn for 4 days.
  • You will be advised to take a light 30-minute walk immediately after your procedure. You can then resume your normal daily activities immediately.
    It is recommended to walk regularly to aid the recovery process as well as assist in preventing recurrence.

Recovery time

A follow up appointment will be organised approximately 4 weeks after your procedure in order to assess the treatment progress.

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Frequently asked questions

Before recommending treatment, Vein Doctors Sydney will assess the source and extent of your vascular condition. Every patient undergoes a consultation, medical exam, and ultrasound. Your medical history, the type and extent of your vascular disease, and your treatment expectations will be outlined when creating a personalised treatment plan.

Choose Vein Doctor Sydney and receive a professional and medical approach from a team that cares about your condition and your treatment outcome.

During the procedure, some patients may feel slight discomfort. Legs may feel heavy, ache, or burn. Minor bruising of the treatment area is expected by goes away after a few days. While it’s nearly impossible to predict how you’ll feel, most of our patients have described their treatment as a pain-scale of 0-3 out of 10, while others don’t find it painful but rather mildly unpleasant. Some patients may find it more painful, although the sensation itself fades fast and pain is unlikely to linger more than a few seconds.

Pain is merely one of several symptoms of damaged veins. Your vein specialist at Vein Doctors Sydney will examine your veins thoroughly and discuss any relevant medical concerns with you. A treatment plan and/or management strategy will be proposed once the level of disease has been assessed and all risks and benefits of treatment have been examined.

Why Choose Us

  • Minimally Invasive Treatments with a Higher Success Rate
    Our minimally invasive procedures offer fewer risks, a quicker recovery, and higher success rates than open surgery.
  • 98% Cure Rate
    Following our non-surgical treatments patients are recovering much quicker with a cure rate of 98%.
  • Vascular Ultrasound Technology
    Onsite ultrasound service is available. It is a safe and effective way to assess the blood flow in the arteries or veins.
  • Experience Proven by 1000s of Patients
    We’ve performed 1000s of endovascular procedures and transformed the lives of over 2500 patients
  • Expert Assistance by our Friendly and Trained Specialists
    Our practice promotes a relaxed and friendly atmosphere where patients are provided with accurate information based on the latest research and technology
  • Everything Under One Roof
    At Vein Doctors we’re committed to providing complete, integrated care under one roof. From diagnosis and treatment to prevention.
Dr. Ryan McConnell

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Free Consultation and Vein Screening*

This consultation is the perfect way for you to learn about what we can do to help you become free of the pain and discomfort of your varicose veins. From start to finish a consultation takes about 45 minutes and the valuable information you will receive will enable you to make important healthcare decisions about your varicose veins.

  • A comprehensive venous ultrasound will be performed
  • A vascular doctor will discuss the results with you, answer any questions you may have and present various treatment options
  • A personalised treatment plan will be provided based on the results of your vein assessment.
  • After your consultation, it is important to know that our team are on hand to answer any further questions and to support you through your journey
*A valid GP referral is required to claim this offer