Colon cancer screening looks for precancerous polyps and early colorectal cancers before symptoms appear, most reliably with colonoscopy and in some cases with stool based tests. At Dr. Alan R. Plumer, MD in Goshen, New York, we explain the options, help you choose the right test for your risk, and coordinate follow up when findings need further attention.
What is colon cancer screening
Colon cancer screening is a set of tests used to detect precancerous growths called adenomatous polyps and cancers in the colon and rectum. Screening is different from diagnostic testing, which is done when someone has symptoms such as rectal bleeding or unexplained weight loss. The main goals of screening are to find polyps early so they can be removed and to catch cancers at an early, more treatable stage.
Common screening tests
- Colonoscopy, a visual examination of the entire colon with the option to remove polyps at the same time.
- Fecal immunochemical test, or FIT, a stool test that detects hidden blood.
- Stool DNA test, a lab test that looks for cancer related DNA and blood in the stool.
- CT colonography, also called virtual colonoscopy, a radiologic exam that images the colon.
Why colon cancer screening matters locally
Colorectal cancer is a common cancer that often develops slowly from polyps. Screening saves lives by preventing cancer or detecting it early. For people in Goshen and the surrounding communities, access to timely screening matters because follow up care and polyp removal reduce the need for more complex treatment later. Our practice coordinates testing and follow up so screening leads to effective action when needed.
Key concepts to understand
- Screening versus symptoms. Screening is for people without symptoms. If you have symptoms such as bleeding, testing becomes diagnostic and the pathway can be different.
- Risk based timing. Age, family history of colorectal cancer, personal history of polyps, inflammatory bowel disease, and certain genetic syndromes change when and how often you should be screened.
- Test properties. Sensitivity refers to a test's ability to find cancers or polyps. Colonoscopy is the most sensitive single test because it lets us see and remove polyps directly.
- Surveillance. Finding polyps usually means a tailored follow up schedule, not that screening stops permanently.
How the screening process works
We begin with a risk assessment that considers your age, family history, symptoms, medications, and medical conditions. For many people, that leads to colonoscopy. For others who prefer a noninvasive option or who have lower risk, a stool based test such as FIT or a stool DNA test may be appropriate. If a noninvasive test is positive, colonoscopy is required to evaluate and often remove the cause of the positive result.
- Risk evaluation. We review personal and family history to choose a screening strategy.
- Test selection. We discuss pros and cons of colonoscopy versus stool tests or CT colonography, and plan the timing.
- Testing and follow up. If polyps or cancer are found, we coordinate removal, pathology, and any further care that is necessary.
Pro tip: If you have a first degree relative with colorectal cancer, tell us. A family history often means earlier or more frequent screening.
Comparing screening options
| Test | What it finds | Notes |
|---|---|---|
| Colonoscopy | Polyps and cancers throughout the colon | Direct visualization and removal, requires preparation and sedation |
| FIT stool test | Hidden blood that may indicate cancer or large polyps | Noninvasive, done at home, needs to be repeated regularly |
| Stool DNA test | DNA markers and blood associated with cancer | Noninvasive, higher cost than FIT, positive tests require colonoscopy |
| CT colonography | Images of the colon that can show polyps | Noninvasive imaging, may require colonoscopy if polyps are seen |
When to start and how often to screen
Guidelines vary by risk. For average risk adults, many organizations recommend starting screening at an age we discuss during your visit. People with higher risk because of family history, prior polyps, long standing inflammatory bowel disease, or certain genetic conditions often begin screening earlier and return more frequently. If you are unsure about your risk, a focused history and discussion with a gastroenterology provider clarifies the right schedule.
Watch out: A normal stool test does not remove the need for screening later, and a positive stool test needs colonoscopy to find the source.
Common questions people ask
- Does screening hurt? Noninvasive stool tests are painless. Colonoscopy is done under sedation so most people do not feel the procedure, though preparation and recovery need planning.
- Which test is best? The best test is the one you will complete. Colonoscopy is the most comprehensive test for detecting polyps, while FIT and stool DNA tests offer noninvasive alternatives that require regular repetition.
- What happens if a polyp is found? Polyps are usually removed during colonoscopy and sent for pathology. Removal prevents many cancers. The pathology result determines how soon follow up should occur.
Related services we provide
Screening is one part of comprehensive digestive care. We connect screening to diagnostic and treatment services when needed. Relevant pages include our Colonoscopy service for details about the procedure, and our Gastroenterologist page to learn how we manage overall digestive health. For symptoms that lead to diagnostic testing, see our GI Doctor page and our Stomach Doctor page.
Related topics and next reads
To prepare for what happens before and after screening, our related topics include Colonoscopy Preparation and Post Colonoscopy Recovery. If you want to understand potential findings and how we handle them, read about Polyp Detection and Removal and Colonoscopy Risks And Benefits.
Helpful resources and local considerations
When choosing or scheduling screening, consider access to follow up procedures, travel time to the procedure location, and your ability to complete any preparation. For people who live or work near Goshen, use our Locations page to see where services are offered and plan logistics. For broader guideline context, authoritative sources include major health organizations that publish screening recommendations.
Key takeaway
Colon cancer screening prevents cancer and saves lives. We help you understand which test fits your risk and how results are managed, whether you choose colonoscopy or a stool based alternative.
Frequently asked questions
Who should get screened for colon cancer
People at average risk begin screening at an age we discuss with you based on current recommendations. Those with a family history of colorectal cancer, prior polyps, inflammatory bowel disease, or certain inherited conditions usually start earlier and have more frequent surveillance.
How is a colonoscopy different from a FIT stool test
Colonoscopy visually inspects the entire colon and allows removal of polyps during the same procedure. FIT is a noninvasive stool test that detects hidden blood and must be repeated at intervals. A positive FIT needs colonoscopy for diagnosis and treatment.
Are there risks to screening tests
All tests have tradeoffs. Colonoscopy carries small risks related to sedation, bleeding, and rarely perforation. Noninvasive tests can miss polyps and require more frequent testing. We discuss risks and benefits when recommending a test.
What if my screening test is positive
A positive stool test or suspicious imaging result leads to colonoscopy to find and treat the source. Our team coordinates timely follow up and explains the implications of biopsy or pathology results.
Learn more and check local details
To see where we provide services, recent patient feedback, and directions, check Dr. Alan R. Plumer, MD on Google Business Profile. For more in depth reading on related topics, browse our topics hub and service pages.