Prostate cancer screening guidelines vary, especially for men over age 70. Experts discuss and debate current guidance following Joe Biden's aggressive diagnosis.

Urologist Dr. Jamin Brahmbhatt knows the complexities surrounding prostate-specific antigen testing with his patients. Here’s what to consider with the PSA test.

In Biden’s case, doctors say the cancer is serious but still treatable, though not curable. President Donald Trump, 78, had a PSA test earlier this year, according to medical records that have been made public — meaning some doctors are still choosing to screen older patients for prostate cancer.