Injection Sclerotherapy

Injection Sclerotherapy

Some of our Results

There are many treatments for spider veins. Although these are veins mainly treated for cosmesis and not a health concern, they are notoriously hard to treat. There are many treatment options (laser, sclerotherapy with different chemicals, radiofrequency), meaning there is no perfect treatment option.

At the Vascular Centre, we use injection sclerotherapy for treating leg veins. We believe this is the best for leg veins as it is the strongest for veins that constantly have gravity applied against them.

At the VC, we have developed protocols to try and ensure the best outcomes. However, one does have to have realistic expectations, understand that getting rid of veins is a process and that maintenance is required as we cannot prevent new veins from forming.
We do believe, based on this understanding and our protocols we can get to the desired results.

The treatment is called injection sclerotherapy. This involves injecting a sclerosant into the veins using tiny needles. The sclerosant essentially irritates the vein walls and causes them to stick to one another and prevent flow through the veins.

Veins do not disappear immediately. They will go red for 24 hours, and then if they start sealing off go dark and the body will resorb them over the next few weeks. Actual time frames of healing vary from individual to individual. In the same way, different individuals respond differently to sclerotherapy (and the different types of chemical). Some people require more than one treatment or dose change.

Once the sclerosant is injected the area will be massaged and dressed. Foam sclerotherapy may be used to treat larger veins. This involves mixing air bubbles with the sclerosant and allows more sclerosant to come into contact with the vein wall at a lower concentration.

How many treatments are necessary?

The number of treatments is individualised once your legs have been examined. There is a limit to the amount of injections and sclerosant that can be done per treatment. Usually more than one treatment session is required. There needs to be a 4 to 6 week treatment break of the same area. The opposite leg can be treated within that timeframe if necessary.


You need to have realistic expectations. When sclerosant is injected, the veins disappear (this is often shown on internet videos). However these veins refill with blood once the sclerosant is washed out (this is usually not shown on internet videos). Statistics recorded by the Mayo clinic state that you should expect to see results in 3 to 6 weeks. Larger veins may take up to 3 to 4 months (see below). Studies have shown an overall success rate of 50 - 80 %.

Side Effect of pigmentation

The chemical used to treat spider veins can sometimes leave pigmentation. We do not know who will get it and who won’t. Treating bigger veins does increase the risk. In most people this will go away but can take weeks to months or up to a year.

At the VC we take precautions to try and prevent this – by bandaging and following a strict post op protocol.

Nix will come to the practice once a week to apply beautiful, even natural tans using products that are hypoallergenic. This will ensure after veins are gone, any pigment is covered and your legs will be smooth, natural and beautiful.

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