Varicose veins:

Chapter: 10
Enlarged and tortuous blood vessels. Occurs most commonly in the legs. Predisposing factors include older age, female sex, heredity, posture and obesity. There is dilation and elongation of the veins as well as incompetence of venous valves. Examples of varicose veins at other sites include hemorrhoids, (rectal), esophageal varices and varicocele (scrotum).