Phlebitis is an inflammation of a vein, usually in the legs.
When phlebitis is associated with the formation of blood clots (thrombosis), usually in the deep veins of the legs, the condition is called thrombophlebitis. These clots can travel to the lungs, causing pulmonary embolisms that can be fatal.
Read more about Phlebitis: Etiology, Signs and Symptoms, Massage, History