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.

President Joe Biden's "aggressive" prostate cancer has led to renewed interest in his health during his presidency

Former President Joe Biden is facing an “aggressive” case of Stage 4 prostate cancer, his office announced over the weekend in a statement. “Cancer touches us all. Like so many of you, Jill and I have learned that we are strongest in the broken places. Thank you for lifting us up with love and support,” Biden posted on social media Monday morning.