Over time, varicose veins enlarge and severe pooling of blood in the veins can slow return of blood to the heart. The result is a increased possibility of blood clots that can travel from the legs to the lungs, where they can block the heart and lungs from functioning. Other problems associated with untreated varicose veins include sores, skin ulcers, ongoing irritation, swelling, and painful rashes of the legs.
"It's generally caused by venus valve dysfunction, and many people believe when they see the vein, they say 'well, this looks ugly', but they do not take care of them, especially men. And what happens over time, because of the venus congestion, you develope what is called stasis dermatitus around the ankle, and that can progress to the venus ulcer."