The announcement Sunday that former President Joe Biden was diagnosed with advanced prostate cancer has some people wondering how the disease could have been missed.

Joe Biden's announcement that he has been diagnosed with prostate cancer has revived questions about what health issues the former US president was dealing with while he was in the White House. In a statement on Sunday,

Former President Joe Biden did not release the results of a prostate-specific antigen blood test that could have caught his prostate cancer before it became aggressive.