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Sclerotherapy for Varicose Veins

Sclerotherapy is frequently used to remove small varicose veins - no more than one to four millimeters in diameter. This procedure involves injecting a varicose vein with saline solution. When the solution enters the vein, the lining of the vein becomes irritated, causing the targeted blood vessel to clot and collapse. The swollen vessel then dies and fades over the next eight weeks. The same vein may require more than one treatment, separated by four to six weeks.

A newer method of sclerotherapy, called foam sclerotherapy, involves the injection of a foamy liquid, which can irritate and collapse larger veins than saline solution injections can. However, if varicose veins are too large, sclerotherapy may not be effective regardless of which liquid is used.

Read more about sclerotherapy