Former president Joe Biden’s last known screening for prostate cancer was in 2014, when he was 71 years old and serving as vice president, a spokesperson for Biden’s office said on Tuesday. It is not unusual for men over 70 to stop having regular prostate-specific antigen (PSA) tests,

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 — who was diagnosed with an aggressive form of prostate cancer — got his last blood test for the cancer over a decade ago.