Posted By Author on February 3, 2026
Colon cancer is still often thought of as a disease that primarily affects older adults, but recent research tells us a different story. In the U.S., doctors are seeing a sharp increase in colorectal cancer diagnoses in patients in their 20s, 30s, and early 40s. Many of these young patients show no obvious risk factors, no family history of the disease, and no reason to suspect anything was wrong.
For families and individuals throughout Charleston and the Lowcountry, this trend is a reminder that awareness and early detection are more important than ever. In this blog, we’re breaking down what the latest studies reveal, why experts believe colon cancer rates are climbing in younger patients, and what steps you can take to protect your gut and overall health.
At Charleston GI, our goal is to empower our community with the knowledge, tools, and proactive care needed to catch warning signs early and stay ahead of preventable gastrointestinal illnesses.
What the Latest Research Says About Early-Onset Colon Cancer
We often associate cancer with aging, as a condition that is mainly seen in people in their 60s and 70s. While age is still a risk factor, cases of younger people being diagnosed with cancer are increasing.
It is recommended to begin colorectal cancer screenings at age 45, a number that was lowered from 50 in 2021 by two key groups that provide preventive guidelines: the U.S. Preventive Services Task Force (USPSTF) and the U.S. Multisociety Task Force on Colorectal Cancer.
This change in the recommended age reflects the concerning trend of rising diagnoses in younger patients. A 2023 report from the American Cancer Society highlighted that 20% of colorectal cancer diagnoses in 2019 were in patients under age 55 – a rate roughly double that of 1995. Additionally, rates of advanced-stage cancer increased by about 3% annually in people younger than 50. The American Cancer Society projected that, in 2023 alone, an estimated 19,550 new diagnoses and 3,750 deaths from colorectal cancer would occur in people under the age of 50.
While the reasons behind the rise in colon cancer cases among younger individuals are unclear, there are several risk factors associated with the disease. These risk factors include lifestyle and environmental influences such as a sedentary lifestyle, being overweight or obese, smoking, heavy alcohol consumption, and diets low in fiber and high in fat or processed meats. Additionally, a family history of colorectal cancer or polyps, along with conditions like inflammatory bowel disease, can also increase your risk.
Common Warning Signs Young Adults Shouldn’t Ignore
We don’t say all of this to frighten anyone, but to educate our patients on colorectal cancer, especially signs and symptoms that shouldn’t be ignored.
Colon cancer develops slowly. A precancerous polyp typically takes about 10 years to become cancerous and cause noticeable symptoms.
When symptoms do appear, they can include:
It’s important to remember that common issues like stomach flu or food poisoning can also cause symptoms such as gut pain, constipation, and diarrhea. Having these symptoms does not automatically mean you have colon cancer.
However, if these issues persist for more than a few days, talk to your doctor. Also, do not hesitate to contact your doctor or one of our board-certified gastroenterologists if you experience blood in your stool, are losing weight without trying, or feel unusually tired, even after resting.
How Early Screening Saves Lives
Many people put off tests like colonoscopies because they sound unpleasant – even though they’re quick and easy. However, if you are experiencing symptoms, it is important to contact your local gastroenterologist at Charleston GI.
If you experience ongoing abdominal pain or notice blood in your stool or on toilet paper, it’s important to schedule an appointment. Various issues, including colon cancer, could cause these symptoms, so your doctor will perform tests to investigate your symptoms and what’s going on in your digestive system.
If you’re diagnosed with colon cancer, consider asking your doctor the following questions:
- What is the stage of the cancer?
- What is the prognosis for treatment?
- Is there a risk of recurrence?
How Charleston GI Supports Early Detection and Prevention
As research continues to uncover why colon cancer is impacting younger generations at increasingly higher rates, one thing is clear: Awareness and early detection can save lives. Whether it’s recognizing subtle symptoms, understanding your risk factors, or being proactive about screening, every step toward early detection makes a meaningful difference.
At Charleston GI, we’re committed to helping patients throughout Charleston and the Lowcountry stay informed, supported, and protected. Our specialists provide advanced screenings, evidence-based guidance, and compassionate care to help you take charge of your digestive health. If you have concerns, symptoms, or questions about when to schedule a colonoscopy, we’re here to help.
Your health matters – don’t wait to make it a priority. Reach out to Charleston GI today to schedule an appointment and take the first step toward peace of mind.
