Blog & News Colorectal Cancer Screening: Early Detection Saves Lives
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Colorectal Cancer Screening: Early Detection Saves Lives
4 min read . 07 Apr 2025
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Oncology

Colorectal cancer is one of the most common types of cancer around the world. It also remains a leading cause of cancer-related deaths.


What makes this cancer especially dangerous is that it often develops quietly, without any clear symptoms in the early stages. Because of this, many people don’t realize they have it until it has already progressed.


The good news? Early detection can save lives.


When found early, colorectal cancer is highly treatable. That’s why regular screening is so important.


Screening can detect small growths in the colon—called polyps—before they become cancer. It can also find cancer in its early stages when treatment is most successful.


Why Early Detection Matters


Colorectal cancer usually begins as non-cancerous polyps in the colon or rectum. These polyps can take years to become cancer, which gives us a great opportunity to catch them early—if we’re looking.


One of the biggest challenges is that early-stage colorectal cancer often doesn’t cause symptoms. That means people can feel completely fine and still have cancer developing inside them.


This is why routine screening is critical. If colorectal cancer is found early, the survival rate is over 90%.


But if it’s found later, after it has spread, treatment becomes harder and the chances of survival go down. Early detection means simpler treatment, better outcomes, and peace of mind.


Who Should Get Screened?


The American Cancer Society recommends that people at average risk start colorectal cancer screening at age 45. However, if you have a higher risk, you may need to start earlier or get tested more often.


You may be at higher risk if:


  • You have a family history of colorectal cancer or polyps.
  • You have a personal history of inflammatory bowel diseases like Crohn’s disease or ulcerative colitis.
  • You have certain genetic conditions that increase your cancer risk.


Lifestyle factors also matter. Smoking, drinking too much alcohol, being overweight, and eating a diet high in red or processed meats can all raise your risk.


If any of these apply to you, talk to your doctor about your screening options.


Common Colorectal Cancer Screening Methods


There are several ways to screen for colorectal cancer. Some are non-invasive and easy to do at home, while others involve a simple procedure at a clinic or hospital.


1. Colonoscopy


This is considered the gold standard for screening. During a colonoscopy, a doctor uses a thin, flexible tube with a camera to look at your entire colon.


They can also remove any polyps they find right away. If you're at average risk, this test is usually done once every 10 years.


2. Stool-Based Tests


These are non-invasive tests you can do at home by collecting a stool sample.


  • FIT (Fecal Immunochemical Test) checks for hidden blood in your stool. It’s done once a year.
  • Cologuard checks for both hidden blood and DNA changes linked to cancer. It’s usually done every 3 years.


These tests are convenient and effective, but if the result is positive, you’ll need a follow-up colonoscopy.


3. Sigmoidoscopy


This is similar to a colonoscopy but only looks at the lower part of the colon. It’s less invasive but doesn’t give a full picture.


It’s usually done every 5 years.


What Increases Your Risk?


Many different things can raise your chances of developing colorectal cancer. Some are out of your control, like age or family history.


Others are related to your lifestyle. High-risk factors include:


  • Being over 50 (though cases in younger people are rising).
  • A family or personal history of colorectal cancer or polyps.
  • Conditions like Crohn’s disease or ulcerative colitis.
  • Poor diet—especially one high in processed or red meats.
  • Smoking and excessive alcohol use.
  • Lack of exercise and being overweight or obese.


While you can’t change your age or family history, you can make healthier lifestyle choices to lower your risk.


When and How to Get Screened


If you're over 45—or younger with risk factors—it’s time to talk to your doctor about getting screened. They’ll help you choose the best screening option based on your personal health history.


Whether it’s a stool test, a colonoscopy, or another method, the most important thing is to get screened. Don’t wait for symptoms to show up.


Colorectal Cancer Screening at Bali International Hospital


If you're in Bali—whether you're a local, an expatriate, or a visitor—Bali International Hospital (BIH) provides top-quality colorectal cancer screening services in a safe and modern environment. Our medical team uses the latest technology to ensure accurate, comfortable testing.


We’re here to help you take control of your health and give you peace of mind. Early detection isn’t just about treatment—it’s about prevention, confidence, and living a healthier life.


Frequently Asked Questions


How do I get screened for colorectal cancer?


Talk to your doctor. They’ll ask about your medical history and help you choose the right screening test.


What happens during a colonoscopy?


A doctor inserts a thin tube with a camera into your colon to check for polyps or signs of cancer. If polyps are found, they can often be removed right away.


How does screening help prevent cancer?


Screening finds polyps before they turn into cancer. It also helps catch cancer early when it’s easier to treat.


What does a positive stool test mean?


It means there may be signs of blood or abnormal cells in your stool. You’ll need a follow-up colonoscopy to find out more.


Which test is best?


Colonoscopy is the most complete option, but stool-based tests are good alternatives for people at lower risk.


Colorectal cancer is common—but it’s also one of the most preventable. Regular screening saves lives by finding problems early or stopping cancer before it starts.


If you’re 45 or older, or if you have other risk factors, don’t put off screening. And if you’re in Bali, let BIH support you with compassionate care and expert medical services.


Take the first step toward better health. Schedule your screening today.


Early detection can save your life. Contact us for more information.