Rising Incidence of Colorectal Cancer Among Younger Adults
The recent passing of actor James Van Der Beek at 48 highlights a troubling trend: the rising incidence of colorectal cancer among younger adults. He was diagnosed with this disease less than two years prior to his death, a situation increasingly common in today’s society.
Colorectal Cancer and Younger Adults
According to the American Cancer Society, the rate of diagnoses for early-onset colorectal cancer—those affecting individuals under 50—has increased by 1 to 2 percent annually since the mid-1990s. This trend has seen the highest spikes in the youngest age demographics.
While overall cancer mortality has significantly decreased in recent decades, deaths from colorectal cancer in adults under 50 have risen. This form of cancer is now the leading cause of cancer-related deaths in this age group, overtaking lung and breast cancer.
Potential Causes of Rising Incidence
Determining the exact causes of this rise is complex. There is no singular factor driving the increase. Dr. Aparna Parikh, a gastrointestinal oncologist at Mass General Brigham Cancer Institute, suggests that while around 20 to 30 percent of early-onset colorectal cancers may involve inherited genetic mutations, the remaining cases appear to be more influenced by environmental and lifestyle factors.
- Increased use of antibiotics
- Exposure to microplastics and harmful chemicals
- Reduced physical activity
- Higher consumption of processed foods and sugars
Research indicates that diets high in red and processed meats and low in fruits, vegetables, and fiber can elevate the cancer risk. These eating habits may disrupt gut bacteria balance and promote chronic inflammation.
Other Risk Factors
Established risk factors for colorectal cancer include:
- Alcohol consumption
- Tobacco use
- Obesity
Obesity has notably been linked to a higher risk of early-onset colorectal cancers. Additionally, early life exposures, such as E. coli infections, may lead to genetic alterations that accelerate cancer development.
Diagnosis and Screening Recommendations
Notably, colorectal cancers in younger individuals often appear on the left side of the colon or in the rectum. These cancers are frequently diagnosed at more advanced stages. Current guidelines recommend routine screenings, such as colonoscopies, starting at age 45 for average-risk individuals. Those with a family history of colorectal cancer or high-risk polyps should begin screening earlier.
Individuals experiencing unusual symptoms, such as changes in bowel habits, unexplained weight loss, or rectal bleeding, should consult their healthcare provider. In Van Der Beek’s case, he reported bowel movement issues early in 2023. After dietary changes did not alleviate his symptoms, he underwent a colonoscopy that confirmed the diagnosis of cancer.
The escalating rates of colorectal cancer among younger adults serve as a crucial reminder for vigilance and proactive health screenings.
