What are spider veins or telangiectasias?

Spider veins or telangiectasias of the legs are a common problem.  They are dilated small blood vessels that have a red or bluish color.  They can form anywhere on the leg.  Sometimes, they occur in a small area, and sometimes they can occur in a large area.  These vessels usually do not cause a major health problem, but they may contribute to discomfort and may even  be unsightly.  Larger dilated blood vessels, called varicose veins, may also occur along with spider veins.  These can also be treated.

What is sclerotherapy?

Sclerotherapy is the gold standard for the treatment of unwanted spider veins or telangectasias.  In this procedure, the physician injects a small amount of sclerosing solution into the spider vein.  The solution irritates the vessel lining, causing it to swell and helps prevent blood from reentering the vessel.  Over several weeks, the treated vessel will transform into scar tissue and become less noticeable or invisible.

What are the treatment areas?

The thigh and leg are the usual areas of treatment. 

How is it performed?

The sclerosing solution is injected into the unwanted vessel, using a syringe and a small needle.  At the end of the procedure, the patient will wear support hose which has been brought to the visit. The patient should wear support hose for the next two weeks for the best results.

Is it painful?

There is some discomfort associated with the small needle used to inject the sclerosing solution.  There also is a temporary burning or stinging sensation due to the sclerosing solution.

Is it safe?

Yes; however, as with any procedure, there are some possible side effects.  There may be redness at the site of injection, which usually resolves within a day.  Brown discoloration may occur in the area treated.  Small ulcers might occur, but they can be treated.  Allergic reaction to the sclerosing solution can occur but it is rare.    

Additional questions?

Please ask Dr Parish or one of our staff.

Author: Parish Dermatology