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.

Former President Joe Biden‘s late-stage prostate cancer diagnosis has ignited debate about early detection protocols and whether the White House health team failed the former commander-in-chief. Biden’s team revealed that he received a diagnosis last week following complaints of urinary issues.

Former President Joe Biden’s diagnosis of late-stage prostate cancer has fueled new conspiracy theories, including from President Donald Trump, that he covered up his health issues during his presidency—but there are many variables that make his diagnosis timeline plausible,