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Why Young Adults Need to Know These Colon Cancer Symptoms

College-age girl eating a sandwich

When it comes to colon cancer, there is good news and bad news. Because more adults 50 years of age and older are getting colonoscopies and other screenings, overall rates of colorectal cancer in the U.S. have been declining dramatically since the mid-1980s.

The bad news? There has been a steady uptick in the disease among young adults, with rectal cancer increasing faster than colon cancer. As a result, in May 2018 the American Cancer Society lowered its colorectal screening recommended start age from 50 to 45 for people of average risk.

In addition, it’s more important than ever, for millennials be aware of colon cancer symptoms and risk factors.

A New Study Looks at Millennials

Researchers from the American Cancer Society studied patients ages 20 years and older with colorectal cancer, looking at the records of 490,305 people who were diagnosed with colon or rectal cancer from 1974 through 2013. The data came from the highly regarded Surveillance, Epidemiology, and End Results (SEER) program registries.

According to the study, young adults may be more likely to be diagnosed with late-stage disease than older people. This may be largely because colon cancer is not typically on the radar of young adults and their healthcare providers, and they often don’t recognize the symptoms–sometimes for years.

Education and Awareness Are Needed

Though the numbers of young people diagnosed with colon cancer is small, young adults need to become better educated about healthy lifestyle behaviors and the risk factors for colorectal cancers, including:

  • Obesity
  • Lack of activity
  • Eating large amounts of red meat

Also, know you can lower your risk by eating lots of vegetables, fruits, and whole grains and less red meat (beef or lamb) and processed meats (hot dogs and some luncheon meats).

Know The Signs of Colon Cancer

People of all ages should be aware of colorectal cancer signs and symptoms and report any changes to their doctor. Some of the common symptoms include:

  • Rectal bleeding or blood in the stool
  • Change in bowel habits
  • Anemia causing weakness and fatigue

New Screening Age

The study authors suggest the age to start screening people at average risk may need to be reconsidered. They point out in 2013, 10,400 new cases of colorectal cancer were diagnosed in people in their 40s, with an additional 12,800 cases diagnosed in people in their early 50s. These numbers are similar to the total number of cervical cancers diagnosed, for which we recommend screening for the 95 million women ages 21 to 65 years.

In addition to colonoscopy, the U.S. Preventive Task Force considers the following methods acceptable screening tests for colorectal cancer: FOBT (Fecal Occult Blood Test), FIT (Stool DNA) and sigmoidoscopy. Talk to your doctor about colorectal cancer screening to determine the most appropriate course of action for you.

author name

Nandi J. Reddy, MD

Nandi J. Reddy, MD, is a hematologist-oncologist with LG Health Physicians Hematology and Medical Oncology. Dr. Reddy’s areas of expertise include cancers of the digestive system, gastrointestinal disorders, and general adult oncology and hematology.

Education: Medical School–Siddhartha Medical College; Residency–Texas Tech University; Fellowship–Dartmouth-Hitchcock Medical Center.

Call: 717-544-9400

About LG Health Hub

The LG Health Hub features breaking medical news and straightforward advice to help individuals of all ages make healthy choices and reach their wellness goals. The blog puts articles by trusted Lancaster General Health clinical experts, good 'n healthy recipes, videos, patient stories, and health risk assessments at your fingertips.


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