Can sclerotherapy have a rebound effect and not only cause more spider veins, but also make the treated ones more prominent?

I've had four rounds of sclerotherapy over the course of a year. Now they're much much worse, and there are new clusters of veins around the injection site. Is it possible sclerotherapy just doesn't work for me?

Answers from doctors (3)


Vein Specialties of St. Louis

Published on Feb 16, 2017

Not knowing how you were treated, it is difficult to assess the reason. Firstly in our clinic, we would perform an ultrasound to ensure that the deeper veins are functioning properly. If they are, we also transilluminate to see below the skin for "feeder" reticular veins. These must be treated to ensure better clearing of the surface spider veins. If they are not treated, you can develop matting (flushing), new veins. We recommend doing your series of treatment in four to six week intervals so the veins that are not completely sealed will be re-treated to reduce complications such as yours.

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Answered by Vein Specialties of St. Louis

Not knowing how you were treated, it is difficult to assess the reason. Firstly in our clinic, we would perform an ultrasound to ensure that the deeper veins are functioning properly. If they are, we also transilluminate to see below the skin for "feeder" reticular veins. These must be treated to ensure better clearing of the surface spider veins. If they are not treated, you can develop matting (flushing), new veins. We recommend doing your series of treatment in four to six week intervals so the veins that are not completely sealed will be re-treated to reduce complications such as yours.

Published on Jul 11, 2012


Its hard to say for sure without an exam, but it may be that the feeding
veins have not been treated. If a primary area of reflux has not been
treated, it may result in matting or appearance of new veins, and also
more risk for staining. Ultrasound can be used to find these areas of
reflux and even a simple vein light can sometime be used. I feel
ultrasound should always be used prior to sclerotherapy, even when
treating spider veins.

Answered by California Vein Specialists (View Profile)

Its hard to say for sure without an exam, but it may be that the feeding
veins have not been treated. If a primary area of reflux has not been
treated, it may result in matting or appearance of new veins, and also
more risk for staining. Ultrasound can be used to find these areas of
reflux and even a simple vein light can sometime be used. I feel
ultrasound should always be used prior to sclerotherapy, even when
treating spider veins.

Published on Jul 11, 2012


Vanish Vein and Laser Center

Published on Jun 22, 2011

Sclerotherapy may not work in 5 to 10 % of people. My experience is that most people WILL respond to sclerotherapy. If sclerotherapy was unsuccessful in you, then a reason for this should be evaluated. You should have a venous reflux exam for underlying reflux and you may need a stronger sclerotherapy solution or you may need the reticular veins treated. I would do a thorough evaluation before giving up on the sclero.

//imgs-origin.edoctors.com/imageresizer/image/user_uploads/58x58_85-1/doctors/1053_1499982262.jpg
Answered by Vanish Vein and Laser Center

Sclerotherapy may not work in 5 to 10 % of people. My experience is that most people WILL respond to sclerotherapy. If sclerotherapy was unsuccessful in you, then a reason for this should be evaluated. You should have a venous reflux exam for underlying reflux and you may need a stronger sclerotherapy solution or you may need the reticular veins treated. I would do a thorough evaluation before giving up on the sclero.

Published on Jul 11, 2012


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