Facebook Blocks Medical Data Information Shared By Apps Facebook Blocks Medical Data Information Shared By Apps Data fed into a Facebook analytics tool by app makers included medical diagnoses and whether users were pregnant, according to a report shared by New York financial services department on Thursday. "Our policies prohibit sharing sensitive health information," Facebook spokeswoman said San Francisco: Facebook has started blocking sensitive health information that third-party apps had been sharing with the social network in violation of its own rules, said New York officials who investigated the situation. Data fed into a Facebook analytics tool by app makers included medical diagnoses and whether users were pregnant, according to a report shared by New York financial services department on Thursday.