The cause of this disease is unknown; it occurs mostly in males between 20 and 40 years of age, and generally in individuals in the higher walks of life (H. Idelson, Ueber Intermittierende Hinken, in St. Petersburger Medizinische Wochenschrift, 1903, No. 5).Varicose veins are very common among the Jews, especially among the women.