In a public service announcement the came out today, the "Jeopardy!" host says pancreatic cancer is "the only major cancer with a five-year survival rate in the single digits."
He encouraged people to be aware of the symptoms of the illness.
"I wish I had known sooner that the persistent stomach pain I experienced prior to my diagnosis was a symptom of pancreatic cancer," he says. "Other common symptoms can include mid back pain, unexplained weight loss, new onset diabetes and the yellowing of the skin or eyes."
Watch the full PSA above.