:My thoughts exactly, when I first noticed the blood type thing.  Pretty sure that is going into way too much sensitive data, and without physically verifying medical records, we'd only be taking a "website's" word for it.  Saying that though, there is nothing on any Wiki-guide pages that stipulates not to include blood types (although common-sense would indicate not to include them).  Perhaps its time to update a policy somewhere to show a person's blood type shouldn't be included on BLP articles.