Multicenter prospective cohort observational study based on a termless epidemiological registry. Periodic inspection and collection of data from the subjects is carried out annually, in the last quarter of the current year. Patient data is recorded in a digital database and is constantly updated
A prospective study of individuals without varicose veins and who have primary varicose veins to assess the morbidity, risk factors and natural course of chronic lower limb vein disease.