Varicose veins lead to a constant sense of heaviness and abnormal swelling in the legs, accompanied by tingling and sometimes cramps. A much more serious pathology related to varicose veins is the insufficiency of the saphenous vein. In this case, the veins fail to flow the right amount of blood from the legs to the heart, causing swelling in the lower limbs. If not treated properly, venous insufficiency can compromise the patient's motility and, consequently, his lifestyle. So before go to doctor, you must know what is a vein center?