Many people, both women and men, suffer from varying degrees of varicose and/or spider veins. The development of vein disease can be due to a variety of reasons, regardless of where they materialize. Most commonly, it is increased pressure in the veins that is the usual culprit behind vein disorders. Hormonal changes such as puberty, birth control pills, pregnancy, menopause and hormone replacement therapy can contribute to varicose veins. Trauma, standing or sitting for a prolonged period of time and simply getting older may all cause venous disease, although the bulk of venous diseases are indeed hereditary.