5 Things to Know About Colorectal Cancer and Prevention

Dr. Pawan Rastogi, a gastroenterologist with NewYork Presbyterian Hudson Valley
Hospital, and an Assistant Professor of Medicine at Columbia University Medical
Center. (Photo: NewYork Presbyterian)

Though largely preventable, colorectal cancer is the second leading cause of cancer deaths in the U.S., as the American Cancer Society (ACS) alarms. Younger people are at risk for getting the disease – the ACS estimates that in 2021 approximately 10.3% of new colorectal cancers occur in people under age 50.

“Colorectal cancer is a disease that can be prevented, says Dr. Pawan Rastogi, a gastroenterologist at NewYork-Presbyterian Hudson Valley Hospital and an assistant professor of medicine at Columbia University Medical Center.

Dr. Rastogi explains the rate of colon cancer has decreased among older adults but the rate has more than double among adults younger than 50. “Certain genetic conditions such as Lynch syndrome, and lifestyle risk factors (diet, obesity and smoking, among others) do raise the risk of developing colorectal cancer at a young age,” Rastogi says.

In recognition of Colorectal Cancer Awareness Month in March, Dr. Rastogi and his colleagues are determined to raise awareness of the disease and shed light on colorectal cancer prevention.

What is colorectal cancer?

Colorectal cancer starts as a growth on the inner lining of the colon or rectum. These growths are called polyps. Some types of polyps can change into cancer over time, but not all polyps become cancer. The chance of a polyp turning into cancer depends on its type. Colon cancer and rectal cancer are often grouped together because they have many features in common.

What are colorectal cancer symptoms and risk factors?

Colorectal cancer symptoms are similar to those of common gastrointestinal issues and usually can include abdominal pain, blood in stool, changes in bowel habits, tiredness, fatigue, unexplained weight loss and decreased appetite. Those whose family members experienced colorectal cancer should inquire about undergoing genetic testing as they are at high risk for the disease.

In addition to family his-tory, factors that can in-crease your risk may include alcohol use, a diet rich in red or processed meat, obesity, and smoking. People with ulcerative colitis or Crohn’s disease, as well as certain ethnicities, especially African Americans, are more likely to get colorectal cancer.

At what age should I start screening for colorectal cancer, and what types of screenings are available? The recommendation has been to start screenings for people at age 50 but in light of more recent data, the new advice is to start screening at age 45.  Most insurance companies will recognize the younger age as appropriate for screening but not all, as yet. People at high risk for colorectal cancer should consult with their doctor about the most appropriate time to begin screenings

There are a few colorectal cancer screening strategies, including at-home stool tests and a colonoscopy exam. At-home tests are designed to detect DNA abnormalities or blood in your stool which might be symptoms of colorectal cancer. Colonoscopy, however, remains the most effective and reliable form of preventing colorectal cancer. During this medical exam, the doctor checks for polyps inside the rectum and the entire colon and can remove any polyps found during the procedure.

The Covid-19 pandemic caused many to delay their scheduled colonoscopies. The procedure is available at NewYork-Presbyterian Hudson Valley’s Digestive Health Center, and you should not wait any longer to schedule this lifesaving screening.

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