I’m an oncologist. Speculating about Biden’s cancer isdangerous.

Ravi Parikh is a genitourinary medical oncologist at Winship Cancer Institute of Emory University.

In the days since former president Joe Biden’s cancer diagnosis, amid the typical outpouring of support for a public figure diagnosed with cancer, two leading conspiracy theories have emerged.

As an oncologist who predominantly treats Stage 4 prostate cancer, I find these narratives dangerous. They risk further stigmatizing the many patients I care for who are surviving and thriving with Stage 4 cancer.