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Early Detection of Colorectal Cancer: Why Screening at 45 Saves Lives

A digital graphic promoting Colorectal Cancer Awareness Month. The top text reads "March is Colorectal Cancer Awareness Month" in bold white and red lettering. Below, a green banner states, "Learn how early detection saves lives." On the left, there is an illustrated colon in shades of red. On the right, a rectangular red section features a circular portrait of Dr. Michael Gilbert, wearing a suit and tie, with text that reads, "A note from our Gastroenterologist, Michael Gilbert, MD." The Monadnock Gastroenterology Associates logo appears at the bottom.
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Early Detection of Colorectal Cancer: Why Screening at 45 Saves Lives

Wellness Wednesday: Wellness Tips

A stylized lotus flower logo with shades of teal and green, featuring a circular emblem in the center depicting a white mountain peak against a blue and green backgroundAt Monadnock Community Hospital, we believe that wellness isn’t just a destination—it’s a journey we embark on together. That’s why we’ve launched our Wellness Wednesday campaign, an initiative designed to inspire, inform, and empower our community to lead healthier, happier lives.

Early Detection of Colorectal Cancer: Why Screening at 45 Saves Lives: A Q&A with Dr. Michael Gilbert

March is Colorectal Cancer Awareness Month—a time to highlight the importance of early detection, prevention, and understanding risk factors. Raising awareness can save lives. Dr. Michael Gilbert, a leading gastroenterologist at Monadnock Gastroenterology Associates, answers key questions about colorectal cancer and what you need to know.

Q: What are the latest guidelines for colorectal cancer screening?

A: In 2023, the American Cancer Society (ACS) updated its guidelines, recommending that individuals at average risk of colorectal cancer begin screening at age 45 This change reflects the rising incidence of colorectal cancer in younger adults. The screening age can vary depending on individual risk factors such as family history, personal health history, and lifestyle choices. For those with higher risk factors, like a family history of colorectal cancer or certain genetic conditions, screening may need to begin earlier, and more frequent screenings might be necessary.

Most insurance plans, including Medicare, cover colorectal cancer screening starting at age 45 with no out-of-pocket costs when using in-network providers. Contact your insurance provider to verify coverage and find participating physicians.

There are several screening options available:

  • Colonoscopy: This is the gold standard for screening and should be done every 10 years if no issues are found.
  • Stool tests (FIT, Cologuard): Non-invasive at-home tests done annually or every 3 years, depending on the test.
  • Sigmoidoscopy: A partial colonoscopy to check for cancer or polyps in the lower colon and rectum, usually performed every 5 years.

 

Quick Tip: If you’re 45 or older, schedule your first colorectal cancer screening—even if you have no symptoms. Early detection saves lives. To learn more, visit Monadnock Gastroenterology Associates.

 

Q: Who needs to be screened for colorectal cancer before age 45?

A: Several groups should begin screening earlier than the standard age of 45 due to increased risk:

  • Family history: If you have a first-degree relative (parent, sibling, child) diagnosed with colorectal cancer or advanced polyps before age 60, begin screening 10 years before their diagnosis age
  • Inflammatory bowel disease: Those with Crohn’s disease or ulcerative colitis should start screening 8-10 years after disease onset
  • Genetic syndromes: People with Lynch syndrome, FAP (Familial Adenomatous Polyposis), or other inherited colorectal cancer syndromes need specialized screening plans starting as early as the teenage years
  • Previous radiation: History of radiation therapy to abdomen/pelvis area requires earlier and more frequent screening
  • Personal history: Those with previous polyps before age 45 need more vigilant screening
  • African American ancestry: May benefit from starting screening at age 40 due to higher risk

Talk to your healthcare provider about creating a personalized screening schedule if any of these risk factors apply to you.

 

Q: Why are colonoscopies important in detecting colorectal cancer?

A: Colonoscopies are a vital tool for colorectal cancer detection as they allow doctors to examine the entire colon and rectum for abnormal growths, such as polyps, which can turn into cancer over time. When caught early, colorectal cancer has a 90%+ survival rate. By identifying and removing polyps early, we can significantly reduce the risk of developing cancer.

During a colonoscopy, doctors can remove polyps before they turn cancerous and biopsy suspicious areas. Early detection significantly improves survival rates. Early detection through colonoscopy is critical because colorectal cancer can often develop without any noticeable symptoms in the early stages.

 

Q: What are the common signs and symptoms of colorectal cancer?

A: Colorectal cancer often doesn’t show symptoms in its early stages, which is why screening is so important. However, if symptoms do appear, they might include:

  • Changes in bowel habits (such as diarrhea, constipation, or a feeling that the bowel doesn’t empty completely)
  • Blood in the stool or rectal bleeding (which may appear as dark or bright red blood)
  • Abdominal discomfort, such as cramps, bloating, or gas
  • Unexplained weight loss or fatigue

Unexplained fatigue or paleness due to low red blood cell levels (iron deficiency anemia) If you experience any of these symptoms, especially if they persist for more than a few weeks, it’s important to consult a healthcare provider as they may indicate colorectal cancer or another gastrointestinal condition.

 

Q: How can I prevent colorectal cancer?

A: While you can’t control all risk factors for colorectal cancer (such as family history or genetics), there are several lifestyle changes that can significantly reduce your risk:

  • Eat a balanced diet: Focus on high-fiber foods, such as fruits, vegetables, whole grains, and legumes, and limit red meat and processed meats. Connect with one of MCH’s nutritionists by visiting Nutrition.
  • Exercise regularly: A physically active lifestyle helps maintain a healthy weight and reduces the risk of developing colorectal cancer.
  • Maintain a healthy weight: Being overweight or obese increases the risk of colorectal cancer, so maintaining a healthy weight is key.
  • Limit alcohol consumption: Abstaining from alcohol or drinking alcohol in moderation can greatly reduce your risk of developing colon cancer.
  • Quit smoking: Smoking is linked to several cancers, including colorectal cancer. If you smoke, quitting is one of the most important steps you can take for your health. Learn more about MCH’s smoking cessation program at: Smoking Cessation Program.
  • Know your family history: If colorectal cancer runs in your family, speak with your doctor about earlier or more frequent screening.

 

Q: Is there anything else people should know during Colorectal Cancer Awareness Month?

A: Absolutely. One of the most important things to remember is that colorectal cancer is one of the most preventable cancers when caught early through regular screenings.

If you’re unsure about when to start screening, talk to your healthcare provider. Even if you feel healthy, getting screened can help detect potential problems before they become serious. Also, don’t forget to encourage loved ones, especially those over the age of 45, to schedule their screenings. Early detection saves lives, and colorectal cancer doesn’t have to be a death sentence if caught in time.

Resources

American Cancer Society (ACS) – Colorectal Cancer Screening Guidelines Current screening recommendations, risk factors, and prevention strategies. 

Centers for Disease Control and Prevention (CDC) – Colorectal Cancer Awareness Comprehensive colorectal cancer facts, symptoms, and screening options. 

National Cancer Institute (NCI) – Colorectal Cancer Overview In-depth information on colorectal cancer symptoms, treatment, and risk factors. 

U.S. Preventive Services Task Force (USPSTF) – Colorectal Cancer Screening Recommendations Evidence-based recommendations for screening intervals and methods. 

During Colorectal Cancer Awareness Month, let’s come together to spread the word about the importance of screening, prevention, and understanding the signs and symptoms.

Take charge of your health—schedule your screening and encourage loved ones to do the same. Together, we can prevent colorectal cancer through awareness and early detection.

Stay well,

Dr. Michael J. Gilbert

Michael Gilbert gastroenterology

Call to Schedule

Expert Advice From Dr. Michael J. Gilbert

“Colorectal cancer is one of the most preventable cancers—when caught early, it’s highly treatable. Regular screenings and a healthy lifestyle are your best defenses.” 

About Dr. Michael J. Gilbert 

Michael J. Gilbert, MD, MS, MHCDS, is a board-certified gastroenterologist with extensive experience in diagnosing and treating digestive conditions. A graduate of Sidney Kimmel Medical College, he completed his residency at Dartmouth Hitchcock Medical Center and a fellowship at the University of Rochester. As a leader in gastroenterology, Dr. Gilbert is committed to patient education, prevention, and advanced screening techniques to improve long-term health outcomes. 

About Monadnock Gastroenterology Associates

Monadnock Gastroenterology Associates (MGA), led by Dr. Michael Gilbert and Nurse Practitioner Erin Jablonski, provides expert care for digestive health, treating conditions of the esophagus, stomach, intestines, pancreas, and more.

Located in the Medical Arts Building at Monadnock Community Hospital, specialized GI care is now available, close to home. 

Visit MonadnockGastro.org for more information. 

Monadnock Gastroenterology Associates