Colorectal Cancer Now Top Killer of Americans Under 50

A Deadly Shift in Cancer Patterns

The death of actor James Van Der Beek at 48 has brought urgent attention to a troubling medical reality: colorectal cancer is now officially the leading cause of cancer-related death among men and women 50 and younger . This represents a significant increase from the 1990s, when it was the fifth deadliest .

Van Der Beek's battle with stage 3 colorectal cancer mirrors a broader crisis affecting thousands of young adults. There has been a 3% increase in cases over the last two decades among people younger than 50, compared with a 0.5% increase among people older than 50 . Even more alarming, people born in the 1990s have four times the risk of rectal cancer and twice the risk of colon cancer compared to those born in the 1960s .

While the vast majority of colorectal cancer cases and deaths still occur in people 50 and older, with deaths dropping by about 1.5% a year over the past decade in that older age group , the younger population tells a different story. Colorectal cancer mortality in Americans under 50 had increased by 1.1% a year since 2005, with an estimated 3,890 people under age 50 expected to die of it this year .

Silent Symptoms Often Dismissed

Van Der Beek's experience illustrates why this cancer is so dangerous in younger adults. "I was in amazing cardiovascular shape, and I had stage 3 cancer, and I had no idea. The one symptom that he did experience was a change in bowel movements, which the actor chalked up to an effect of his coffee consumption" .

Medical experts emphasize that the main reason colorectal cancer has become the leading cause of cancer death for Americans under 50 is more related to delayed diagnosis. Unlike breast or cervical cancer, most people under 50 do not expect colorectal cancer, so early symptoms, such as rectal bleeding, abdominal pain, anemia, or changes in bowel habits, are often dismissed or attributed to benign conditions .

The most common signs and symptoms for early-onset colorectal cancer are blood in the stool, abdominal pain and a change in bowel habits, or any combination of these conditions. Unexplained anemia, or low red blood cell levels, is another potential symptom. These are warning signs that people should not ignore .

The Mystery Behind Rising Cases

Scientists remain puzzled about the exact causes of this surge. One study led by the American Cancer Society found that the risk in people under age 55 has doubled since the late 1970s. There are likely several factors at play, but among the likely culprits are modern dietary habits, which rely heavily on highly processed foods that are often laden with carcinogens. The more of these that we eat, the greater our chances of creating gene mutations that eventually become cancerous .

Lifestyle factors like ultra-processed foods and alcohol, as well as lack of exercise, have been linked to early-onset colorectal cancer. However, these are correlations that aren't proven to be the cause of colorectal cancer in young adults . Many researchers are focusing on the gut microbiome, which is an ecosystem of microorganisms in your gut that helps your body digest food and carry out other important functions. When the microbes in the gut are out of balance – a condition called dysbiosis – this causes a disruption that allows for inflammation and negative health effects, including increased cancer risk .

Early Detection Saves Lives

The good news is that early detection dramatically improves outcomes. When colorectal cancer is diagnosed early, there is a 90% five-year survival rate . Colon cancer has a cure rate of more than 90 percent when caught in its earliest stages. The problem is that in two-thirds of cases, the disease is already in advanced stages by the time it is diagnosed .

This reality has prompted changes in screening guidelines. The U.S. Preventive Services Task Force now recommends colorectal cancer screenings starting at age 45, with follow-up screenings every five to 10 years after . Those with a family history of colon cancer should likely begin screening at age 40 .

Van Der Beek's death serves as a stark reminder that cancer doesn't discriminate by age or fitness level. As screening technologies improve and awareness grows, the hope is that fewer families will face the devastating loss that has touched the Van Der Beek family and thousands of others affected by this increasingly common disease among young adults.