Board Thread:Naruto Discussions/@comment-26636534-20180325094649/@comment-5085906-20180325135726

^Yeah, the wikia collects all available information on all of its articles. Doesn't make every single one of them canon. Check the sources - the information comes from the novels which were NOT written by Kishimoto, were not referenced in the manga (like how Boruto's or Dragon Ball Super are doing it) and 'thus are pretty much non-canon. Izumi never made an appearance in the manga. She appeared in the anime and the novels which are, again, non-canon.