The most common changes in the veins are varicose veins. According to the Bonn vein study, 90% of the population is affected by vein changes, so one can speak of a widespread disease. Genetic predisposition plays a major role in the development of varicose veins. If left untreated, the condition will slowly worsen, leading to numerous conditions such as phlebitis, leg swelling, microcirculation disorders, skin changes, leg ulcers, and thrombosis. Timely professional diagnosis and treatment can avoid complications.