Colorectal cancer is particularly deadly for younger adults in their 20s, 30s and 40s, according to the American Cancer Society. It is now the No. 1 cause of cancer deaths in people under 50, a shift from the age of 50 to younger adults. Dr. Derek Ebner, a gastroenterologist at the Mayo Clinic, manages these lifestyle factors such as a healthy diet and exercising daily to reduce his risk. He also emphasizes the importance of screening and catching the cancer before it spreads. The American Cancer society reports that rectal cancer has been on the rise, accounting for almost one‑third, or 32%, of all colorectional cancer cases. The symptoms most frequently observed include abdominal pain, constant discomfort, or a fullness, which can lead to fullness and discomfort.