Nearly half of U.S. colorectal cancers now under 65: ACS
GEORGIA, UNITED STATES — Nearly half of new colorectal cancer cases in the United States now occur in adults under 65, marking a dramatic demographic shift that is reshaping screening strategies, clinical workflows, and long-term planning for health systems, according to a new study from the American Cancer Society.
The Colorectal Cancer Statistics 2026 report shows incidence rates increasing 3% annually among adults ages 20 to 49 and 0.4% annually among those 50 to 64 between 2013 and 2022, even as rates declined 2.5% per year in adults 65 and older.
Rectal cancers now account for 32% of all colorectal cancer cases, up from 27% in the mid-2000s, and have risen 1% annually since 2018.
“This was always a disease that was Grandpa’s disease,” said Dr. William Dahut, the society’s chief scientific officer, in a report from The New York Times.
However, experts note this trend may extend beyond age. “This isn’t necessarily an age-specific thing — this is a generational thing,” added Andreana Holowatyj, an assistant professor at Vanderbilt University Medical Center, pointing to a “birth-cohort effect” among people born after 1950.
Rebecca Siegel, the report’s lead author, described the trend to Business Insider as “like a slow-moving tsunami where it’s going to continue to affect more and more people.”
‘It’s some either environmental or behavioral exposure that was introduced in the last half of the 20th century,” Siegel added.
Alarmingly, three out of four adults under 50 are diagnosed at Stage 3 or 4, partly because they are not routinely screened.
“We know young patients are presenting with signs and symptoms, and that there’s about a 4- to 6-month gap between symptom presentation and diagnosis, which is alarming,” Holowatyj said in a report from NBC News.
Why rising colorectal cancer rates strain healthcare capacity
The surge leads to increased need for colonoscopies, oncology consults, and complex rectal cancer care throughout hospitals and multispecialty clinics. The ACS report estimates that 158,850 new cases will occur in 2026, together with 55,230 deaths, which will include nearly one-third of deaths occurring in people younger than 65.
Rectal cancer treatment often involves chemotherapy and radiation before surgery, which can affect fertility and quality of life.
“Stage for stage, young people will do better,” Dahut said, but late-stage diagnosis increases cost and resource use, a concern for systems operating under value-based care contracts.
Screening begins at 45 for average-risk adults, yet just over one-third of those ages 45 to 49 are up to date, underscoring operational gaps in outreach and follow-up.
How healthcare outsourcing improves cancer care navigation
As patient volumes shift younger, healthcare facilities are using outsourced population health analytics services to find high-risk patient groups, monitor age-related health patterns, and use the data to produce reports required for quality assessment.
Offshore nurse navigators and care coordinators can follow up on positive fecal immunochemical tests, schedule colonoscopies, and reduce no-shows that lead to advanced-stage diagnoses.
Revenue cycle teams abroad are also handling prior authorizations and coding for colorectal procedures, helping ease administrative strain.
Telehealth triage teams have the ability to elevate their emergency cases when young patients show symptoms of rectal bleeding or bowel changes, as this allows them to reach their diagnosis more quickly.
Offshore contact centers conduct screening outreach initiatives while they establish standard procedures for discussing symptoms that include bloody stool.
Health systems need to establish comprehensive operational support systems that match their need for continuous monitoring as they face a rising burden of cancer cases which researchers expect to become a major public health crisis.
