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A varicose vein is a superficial vessel that is abnormally lengthened, twisted, or dilated, seen most often on the legs and thighs.
Varicose veins develop spontaneously and are usually attributed to a hereditary weakness of the vein. The valves in the vein that keep the blood circulation upward toward the heart are usually incompetent. Increased pressure from long standing or exertion, or internal factors such as Pregnancy, or lessened support by the tissues surrounding the veins that occurs with Aging and Obesity, cause the weakened veins to dilate.
Mild varicosities often cause no discomfort. Yet, individuals with more severe cases may develop swelling of the legs, ankles, and feet and local Eczema or Ulcers. Varicose veins may require surgery, before a clot is formed which can lead to Stroke or a fatal heart disorder.
Ginkgo biloba (2)
1. Belier J. Biochemistry of the synergists: Ascorbic acid and hesperidin. Exp Med Surg 1955; 12:563-69.