Medical expert 'absolutely shocked' by timing of Biden's prostate cancer diagnosis

Former President Joe Biden's advanced prostate cancer diagnosis has left Fox News senior medical analyst Dr. Marc Siegel "absolutely shocked" by the timing.

"It has to get really pretty far advanced usually before you could have urinary symptoms leading to urinary retention," Siegel explained Monday on "Fox & Friends."

"Thank God they found it. [Biden is] a fighter. He's been through a tremendous amount in his life… with his son, with [his] wife, with [his] daughter. Two aneurysms, atrial fibrillation.