Mondor's disease, also called Mondor's syndrome, is a rare condition that is characterized by the inflammation of a blood vessel, resulting in pain and discomfort. The condition is most commonly found in the breast region, but can also occur in other parts of the body. There are no formal synonyms for the term Mondor's disease, but other names used to describe the condition include thrombophlebitis of the superficial veins, sclerosing thrombophlebitis, and breast vein thrombosis. The symptoms of Mondor's disease can often be managed with medication and lifestyle changes, but it is important to seek medical attention if the symptoms persist.