Rectal cancer rates are rising in U.S., driving an increase in illness in younger adults​Rectal cancer rates are rising in U.S., driving an increase in illness in younger adults 

 A rise in rectal cancer rates is driving an increase in colorectal cancer diagnoses in people younger than 65, according to a report published Monday from the American Cancer Society.  ​​A rise in rectal cancer rates is driving an increase in colorectal cancer diagnoses in people younger than 65, according to a report published Monday from the American Cancer Society.