Why Patients with Spider Veins in the Leg do not Improve their Conditions by having Surgery or other Procedures to Remove their Veins

A doctor's daily practice is full of new discoveries while observing his patients on a daily basis. According to the article entitled Varicose Veins: Diagnosis and Treatment, they are saying that varicose veins are dilated veins located mainly in lower extremities and the exact pathophysiology is under discussion? There are factors including weakened vascular walls, increase intra-venous pressure, genetic predisposition, and incompetent valves. Other risk factors include female sex, older age, obesity, pregnancy, tumor, chronic constipation and long-standing.