Fastexy Exchange|James Van Der Beek 'went into shock' over stage 3 colorectal cancer diagnosis

James Van Der Beek is Fastexy Exchangerevealing the moment he "went into shock" when he learned he had cancer.

The "Dawson's Creek" is speaking out to People magazine after revealing in a statement published in the outlet Sunday that he had been diagnosed with stage 3 colorectal cancer.

"I've been privately dealing with this diagnosis and have been taking steps to resolve it, with the support of my incredible family," Van Der Beek previously told the outlet.

In an article published Friday, Van Der Beek detailed how a colonoscopy changed the course of his life. Van Der Beek said differences in his bowel movements led him to consider diet changes to cure potential issues. When he didn't notice a change, the actor scheduled the procedure.

"I thought maybe I needed to stop coffee," he told People. "Or maybe not put cream in the coffee. But when I cut that out and it didn’t improve, I thought, 'All right, I better get this checked out.'"

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James Van Der Beek revealscolon cancer diagnosis: 'I'm feeling good'

Van Der Beek continued: "I felt really good coming out of anesthesia, that I'd finally done it. Then the gastroenterologist said — in his most pleasant bedside manner — that it was cancer. I think I went into shock."

What is colorectal cancer?

Colorectal cancer, or colon cancer, occurs when polyps, or growths, develop on the inner lining of the colon, according to Cleveland Clinic. If left untreated, the cancer can spread to other areas of the body.

Van Der Beek didn't share exact details about his treatment plan, but colon cancer is typically cured with chemotherapy, radiation therapy and surgery.

Despite his stage 3 diagnosis, Van Der Beek has hope for the future.

"I'm very cautiously optimistic. I'm in a place of healing, my energy levels are great. When I've been out of the woods completely for what feels like a responsible amount of time, I'll circle back and let you know," Van Der Beek said.

Contributing: Edward Segarra