When colon cancer was not yet part of the population screening, tumors that were discovered were often at a bad stage. Less than 20 percent were in the “most favorable phase”, stage 1. Since the large-scale checks, this has risen to more than 30 percent. The number of discovered cases of intestinal tumors in the “worst phase”, stage 4, actually fell from more than a quarter to more than 15 percent. In that phase, the cancer has spread and the patient can no longer be cured.
Colon cancer is increasingly being discovered at an early stage thanks to population screening
