How can we Diagnose Varicose Veins?Varicose veins are diagnosed merely by physical examination of the patient while standing or sitting down with dangling legs. The doctor may recommend the following tests -An X-ray of the vein (venogram) A duplex ultrasound of the affected leg to tell if there is any problem with the blood flow and to rule out other causes like blood clots. Published on Sep 25, 2014Last Updated on Nov 28, 2019