Causes Spider Veins

Causes Spider Veins Millions of people in the world have either spider veins or varicose veins
About half of the women who are between 40 and 50 years of age have spider veins; and 75% of the women who are between 60 and 70 years old have them. About half of the men over 70 have spider veins and one fourth of men who are between 30 and 40 have spider veins.

Spider veins result when the valves in the veins become weak or damaged. If the valves cannot or do not open up properly to allow blood to freely flow in and out, blood starts to back up and the veins will swell. There can be several factors that increase the risk of developing the condition. Examples include:

  • Getting older
  • Family history of spider veins
  • History of blood clots
  • Birth control pills
  • Pregnancy
  • Wearing clothing that is too tight
  • Obesity
  • Constipation

What causes Spider Veins