Regular routine check ups on women fitted with intrauterine contraceptive devices (IUD) do not appear to confer any protection against adverse events, a UK general practice-based study has found. The medical records of women registered with one practice in Rugby, Warwickshire who had had an IUD fitted between 1976 and 2005 were examined. Only women who had a device in place for at least two years with a complete set of legible records covering the time between insertion and removal or study endpoint (March 2007) were included in this retrospective analysis. [With external links to the current evidence base]