Dilated small veins in the skin itself are sometimes called "thread veins", "spider veins" "broken veins" or "flare veins". Although these may be unsightly they are not the same as varicose veins.
Thread veins on the legs are very common especially in women. They may cause embarrassment from a cosmetic viewpoint. Although they may look unsightly, they usually cause no symptoms at all. Very occasionally, local discomfort / irritation or aching in the leg may occur, but this is exceptionally rare.
It is important to be assessed by a specialist to exclude an underlying varicose vein disorder before any treatment is administered in order to avoid making the situation worse. Treatment is usually by Microinjection Sclerotherapy (Microsclerotherapy).