Answer
Phlebitis is a condition in which the veins become inflamed. It can be caused by a number of factors, including blood clots, injury, or infection. Phlebitis can be a serious condition, as it can lead to blood clots that can travel to the lungs and cause a pulmonary embolism. Dan Quayle, who served as the 44th Vice President of the United States, suffered from phlebitis in 1996.