Spider veins are clusters of thin red, blue or purple coloured veins resembling spider legs that appear on the thighs, calves and ankles. They can also appear as tiny branch-like shapes or simple, thin, separate lines. Not only are spider veins displeasing, they can also cause physical discomfort including pain, swelling, burning and night cramps. Ageing, genetics, pregnancy, hormone changes, long periods of standing or sitting are all factors which contribute to the development of these veins.
Spider veins can be likened to a river delta with the river flowing into the delta. This is called a feeder vein and if any improvement is going to take place these feeder veins must be sealed off. Any treatment that fails to seal off the feeder vein before treating the spider veins is an exercise in futility. In some cases the feeder veins are not visible, making treatment difficult.