As a horse trainer, Trey Bullinger spends hours in the saddle every day.  That’s why he blamed hemorrhoids when he noticed blood in his stool.

“Moving up and down on a horse can do that to you,” he says.

But Trey would soon learn that the bleeding was caused by rectal cancer, not hemorrhoids.

Rectal cancer symptoms provide a wake-up call

Trey’s story starts like that of many rectal cancer survivors. He...