Former President Joe Biden’s diagnosis of an aggressive, stage-4 prostate cancer has reignited a long-simmering medical debate: When should men get screened for prostate cancer? For decades, doctors have wrestled with how often to screen men for the disease and when to start and stop.

Former president Joe Biden’s newly diagnosed prostate cancer, an aggressive form that has spread to his bones, has renewed the debate about who should receive annual screenings for signs of the disease.

This male cancer can be easily screened for, but the lack of symptoms in the early stages makes it easy to overlook.