Colorectal Cancer Rates Rising Among Younger Adults

9/5/2025

DeTar Surgeon Emphasizes Early Screening

Colorectal cancer remains the second leading cause of cancer-related death in the United States, and recent trends are raising new concerns among healthcare professionals. Between 2012 and 2021, diagnoses of colorectal cancer in adults under 50 have steadily increased, even as rates in those over 50 have declined.

According to the American Cancer Society, an estimated 107,320 new cases of colon cancer and 46,950 new cases of rectal cancer will be diagnosed in 2025.

Dr. Mark Tullos, general surgeon at DeTar Healthcare System, says that early detection is critical — especially given the shifting age demographics of the disease.

“We are seeing more young patients being diagnosed with colorectal cancer, often at more advanced stages,” said Dr. Tullos. “The best defense is a good offense, and that means regular screening. Many cases can be prevented entirely by identifying and removing polyps before they turn cancerous.”

Both the American Cancer Society and the U.S. Preventive Services Task Force now recommend that individuals at average risk begin screening at age 45. Those with certain risk factors may need to begin screening earlier or undergo testing more frequently.

Risk factors that may require earlier screening include:

• A personal or family history of colorectal cancer or certain types of polyps
• A personal history of inflammatory bowel disease (ulcerative colitis or Crohn’s disease)
• A previous history of radiation to the abdomen or pelvis
• Inherited syndromes such as Lynch syndrome or familial adenomatous polyposis (FAP)

Dr. Tullos also emphasizes that screening doesn’t always mean a colonoscopy. Testing the stool for occult blood has been around forever, but Dr. Tullos shared that there are also diagnostic stool DNA tests and even a blood test to detect DNA changes. Dr. Tullos said that if polyps are present, a colonoscopy will be needed to remove them.

“Screening is more accessible than ever, with multiple non-invasive options available,” Dr. Tullos said. “No matter the method, the important thing is that patients talk with their doctor and get screened.”

In addition to screening, lifestyle changes can play a significant role in reducing risk. Dr. Tullos advises maintaining a healthy weight, exercising regularly, avoiding tobacco and limiting alcohol consumption. He also recommends a diet high in fruits, vegetables and whole grains, while cutting back on red and processed meats.

“Diet and lifestyle habits are major contributors to colorectal cancer risk,” he noted. “The same healthy choices that protect your heart also help protect your colon.”

Screening may be fully covered by your insurance provider. In many cases, a colonoscopy is considered a preventive or wellness service at age 45 and older — and follow-up diagnostic tests are often covered as well.

If you’ve reached age 45, or have a family history of colorectal cancer, talk to your primary care provider to determine when you should start screening — and which test is right for you.

Find a physician or schedule your screening today at www.mydetardoctor.com.

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