Thrombophlebitis is a circulation problem that develops when blood clots disrupt circulation in a vein. The vein becomes swollen and inflamed. There are two forms of thrombophlebitis:- superficial thrombophlebitis and deep vein thrombosis (DVT). In some cases of DVT the blood clot travels to the heart, lungs, or other organs where it can cause death. Treatments for thrombophlebitis may include reducing swelling and pain with medications and/or compression stockings. For DVT, blood thinners may be given; in some cases, surgery may be necessary. Follow the links below to find WebMD's comprehensive coverage about how thrombophlebitis is caused, how to treat it, and much more.