The Importance of Colon Cancer Screening: A Guide to Colonoscopies
posted: Oct. 28, 2025.
Colon cancer is one of the most preventable forms of cancer—yet it remains one of the most commonly diagnosed. Many people delay or avoid screening out of fear or uncertainty, but colonoscopies are a powerful tool that can save lives through early detection and prevention. At SoCal Digestive Wellness in Arcadia, CA, Dr. Sunny Lo and his team are dedicated to making colon cancer screening a comfortable, informative, and empowering experience for every patient.
Understanding Colon Cancer and Its Risks
Colon cancer, also known as colorectal cancer, typically begins as small, noncancerous growths called polyps in the lining of the colon or rectum. Over time, some of these polyps can become cancerous. Because early-stage colon cancer often causes no symptoms, routine screening is essential.
Certain risk factors can increase your likelihood of developing colon cancer, including:
- A family history of colon cancer or polyps
- Age 45 or older (earlier for high-risk individuals)
- Inflammatory bowel diseases such as Crohn’s or ulcerative colitis
- Unhealthy diet, smoking, or excessive alcohol use
- Sedentary lifestyle
Recognizing your risk and screening regularly are key to prevention.
Why Colonoscopies Are So Important
A colonoscopy is the gold standard for colon cancer screening. It not only allows physicians to detect early signs of cancer but also provides an opportunity to remove polyps before they turn cancerous.
During a colonoscopy, a thin, flexible tube with a camera is gently inserted into the rectum to examine the entire colon. The procedure is safe, highly accurate, and typically performed under sedation for comfort. Most patients report minimal discomfort and can resume normal activities within a day.
Early Detection Saves Lives
Colonoscopies can detect even the smallest abnormalities that other screening methods might miss. When colon cancer is found early, treatment success rates are significantly higher, and in many cases, the disease can be completely prevented through timely removal of precancerous polyps.
Regular screenings should begin at age 45, or earlier if you have a personal or family history of colon cancer or gastrointestinal disease. Dr. Sunny Lo personalizes screening recommendations based on your health history and risk factors to ensure the best preventive care possible.
Preparing for Your Colonoscopy
Preparation involves following a clear liquid diet and using a bowel cleanser to ensure the colon is clear for optimal visibility. While this step may seem daunting, the preparation process has improved significantly over the years, making it easier and more tolerable for patients.
At SoCal Digestive Wellness, the team provides detailed instructions and support to help you prepare comfortably and confidently.
Compassionate Care for Your Digestive Health
Dr. Sunny Lo and his team at SoCal Digestive Wellness in Arcadia, CA, are committed to providing patient-centered, compassionate care. From prevention and diagnosis to treatment and education, their goal is to empower patients to take control of their digestive health with confidence and peace of mind.
If you’re due for a colon cancer screening or have questions about colonoscopies, schedule an appointment with Dr. Sunny Lo today.