These are seen in the superficial veins of legs due to following main reasons i.e.,
In earlier days conventional/open surgery was the only choice, where they used to do procedures like Ligation/ Stripping of the veins which was invasive.
Now a days with the advent of laser, the outcome of the treatment is drastically changed.
LASER is the procedure where superficial vein in the leg is punctured with a needle without cuts. Then laser fiber is introduced into the vein through the needle under ultrasound guidance. After assuring its correct position, firing of laser starts from above downwards occluding the vessel. The vessel then starts shrinking with approximation of its walls over next few days resolving the problem of venous stasis.
Sometimes in few cases, a follow up procedure called SCLEROTHERAPY (ablation of veins by using some chemicals) may be needed to treat the residual dilated varicosities.