Don't I need my superficial veins?

Venous reflux (faulty veins) in the greater saphenous or other superficial veins actually interferes with the normal venous return of blood. Closing or removing these areas improves venous circulation as the blood is diverted to normal veins with functioning valves. The resulting improvement in circulation significantly relieves symptoms and improves appearance.

What causes varicose veins?
Varicose veins affect an estimated 40% of women and 23% of men.
The factors contributing to the varicose veins include:

Heredity Most common
Gender Women are more likely to be affected, due to
hormonal changes
Pregnancy Hormonal changes and increased blood volume
Age Loss of elasticity of vein walls as we age

Are there other contributing factors?
These factors do not cause but speed up the development:

Prolonged standing or sitting Cause increased pressure in lower limbs
Obesity Increases abdominal pressure
Hormonal Level Birth control pills or hormone replacement cause
same effect as pregnancy
Physical Trauma Injury to lower limb can damage underlying veins