The following are the results of our survey on CCSVI that has just closed. Surprisingly only 10% of respondents thought that CCSVI is the cause of MS. Almost a quarter of people think it is an established disease. In medicine we define a disease when we can correlate the clinical presentation and course with a specific pathology; the so called clinico-pathological correlate. At the moment we don't have enough information to make this call in relation to CCSVI; CCSVI is therefore is a non-disease at present. The latter situation may change with the emergence of new data.