sportsest The content of the page may mean that even by changing this word to something that is medically correct Google will choose not to serve ads on it.
Google only allows ads on family friendly content and has a wide ranging list of words that it wont allow ads to be shown if the word is within a website page.
In terms of the additional pages that you have mentioned the only way to remove the pages from the objectionable content filter is to remove the objectionable word from the page. You can find the word on the page by clicking ctr and F and in the search box typing the word.
If the word is no longer on the page than ads can show, the objectionable content filter checks the pages every 24 hours and so a page could be showing in the objectionable content filter for yesterday. If you have made changes to your site this morning then ads will be able to show and the page wont be flagged going forward. many thanks