In the majority of cases, a procedure called sclerotherapy is used to remove varicose veins. A solution, called a sclerosing solution, is injected with a very fine needle directly into the diseased blood vessel. This procedure has been used for spider veins since the 1930’s and long before that for larger veins. The solution irritates the vessel lining, causing it to swell and stick together. Over a period of weeks the vessel fades from view, eventually becoming barely or not at all visible.
Depending on size, a single blood vessel may require multiple treatments, but in any one treatment session several vessels can be injected – this may involve up to 30 injections in one session.
The solutions used vary according to the size of the diseased vessel; your doctor will decide the solution that is best for your particular case. Larger varicose veins often underlie spider veins. In these cases, we believe the varicose veins should be treated before the spider veins, either by sclerotherapy, ultrasound guided sclerotherapy (UGS) or by endovenous laser treatment (EVLT) followed by compression. The type of treatment necessary is determined by a vascular ultrasound examination, which provides a precise diagnosis of any major superficial vein abnormalities.