Varicose veins are not usually dangerous, and some people have no symptoms. In many people, however, the varicose veins are associated with pain, aching, itching, burning, a heavy or tired feeling in the legs, swelling or cramps, or may spontaneously rupture & bleed.
In rare cases, varicose veins may signify serious underlying disease of the deeper veins, and if this is a possibility, it may be recommended that you undergo further evaluation. Patients with varicose veins are also at slightly higher risk for blood cloths.