Colonoscopy News and Research

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Colonoscopy is examination of the inside of the colon using a colonoscope, inserted into the rectum. A colonoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease.

Rectal bleeding increases the odds of colorectal cancer diagnosis by 8.5 times

Adults under 50 undergoing colonoscopy were found to have a dramatically higher risk of having colorectal cancer when the procedure was done for rectal bleeding.

3 Oct 2025

Healthy lifestyle after bowel screening confirmed to lower disease risk

A new study shows that if you adopt a healthier lifestyle after bowel screening, it can lower your risk of both bowel cancer and other chronic diseases

3 Oct 2025

Severe obesity linked to lower rates of recommended cancer screenings

In a recent cross-sectional study, researchers from Pennington Biomedical Research Center found that severe obesity is associated with a lower rate of cancer screenings.

22 Sep 2025

Personalized risk information does not increase colorectal cancer screening rates

A new Indiana University School of Medicine clinical trial - the largest of its kind to date - found that providing personalized colorectal cancer risk information to patients and their health care providers did not improve screening rates for the deadly ailment.

16 Sep 2025

Why smartphone use on the toilet may increase hemorrhoid risk

Adults using smartphones on the toilet spent significantly more time seated and had 46% higher odds of hemorrhoids on colonoscopy. The cross-sectional study suggests prolonged sitting, not straining, may be the key driver of hemorrhoid risk.

8 Sep 2025

New imaging method detects colorectal cancer using tissue autofluorescence

Colorectal cancer (CRC) is one of the most common and deadly forms of cancer worldwide. A key reason for its high death toll is that it often goes undetected until it reaches an advanced stage.

28 Aug 2025

Inflammatory bowel disease in Nigeria reveals unique clinical patterns and challenges

Inflammatory bowel disease (IBD) is a chronic condition with significant health implications worldwide. In Nigeria, data on its prevalence and characteristics are limited, highlighting the need for comprehensive studies to better understand its epidemiology and clinical features in the region.

28 Aug 2025

Gut bacteria provide key to identifying colorectal cancer from stool samples

Colorectal cancer is the second leading cause of cancer death worldwide. If detected early, it can be efficiently treated, but the cost and discomfort of colonoscopies - the main diagnostic method currently in use - often result in delayed diagnosis.

25 Aug 2025

Boston University launches project to improve colonoscopy access for autistic adults

Boston University has been approved for a funding award through the Eugene Washington PCORI Engagement Award Program, an initiative of the Patient-Centered Outcomes Research Institute (PCORI).

21 Aug 2025

AI use in colonoscopy may weaken doctors' detection skills over time

The introduction of artificial intelligence (AI) to assist colonoscopies is linked to a reduction in the ability of endoscopists (health professionals who perform colonoscopies) to detect precancerous growths (adenomas) in the colon without AI assistance, according to a paper published in The Lancet Gastroenterology & Hepatology journal.

13 Aug 2025

Mailing at-home test boosts colorectal cancer screening in adults under 50

In a new study aimed at identifying the best approach to promote colorectal cancer screening in adults ages 45 to 49, UCLA researchers found that simply mailing a stool-based test directly to people's homes was the most effective strategy for increasing screening rates.

4 Aug 2025

New AI model performs medical image segmentation with far less data

A new artificial intelligence (AI) tool could make it much easier-and cheaper-for doctors and researchers to train medical imaging software, even when only a small number of patient scans are available.

1 Aug 2025

A tourist ended up with a wild bat in her mouth — and nearly $21,000 in medical bills

In retrospect, Erica Kahn realizes she made two big mistakes. The first was choosing to temporarily forgo health insurance when she was laid off from her job.

31 Jul 2025

Blood-based tests show promise for colorectal cancer screening but follow-up challenges persist

A study led by investigators at the UCLA Health Jonsson Comprehensive Cancer Center found that while blood-based tests offer a more convenient option for colorectal cancer screening, only 49% of patients completed a follow-up colonoscopy within six months, and just 56% did so at any point during the two-year study period.

29 Jul 2025

New swallowable sensor pill reveals gut inflammation with a simple color change

Researchers have developed an ingestible biosensor pill (PRIM) that detects intestinal inflammation by releasing a blue dye in response to elevated reactive oxygen species, providing a simple, at-home visual indicator.

27 Jul 2025

Viome and Scripps Research join forces to develop at-home RNA test for colon cancer prevention

Viome Life Sciences, the leader in AI-powered, RNA-based diagnostics and precision nutrition and Scripps Research, the leader in accelerating the impact of fundamental research on human health, today announced a strategic partnership to develop and clinically validate the first at-home RNA test designed to detect precancerous colon polyps, enabling early prevention of colorectal cancer.

14 Jul 2025

A Texas boy needed protection from measles. The vaccine cost $1,400.

In the early days of the West Texas measles outbreak, Thang Nguyen eyed the rising number of cases and worried. His 4-year-old son was at risk because he had received only the first of the vaccine's two doses.

30 Jun 2025

Study explores how a familiar spice tackles the toughest cancer cells

Researchers found that clinically achievable doses of curcumin, the active compound in turmeric, target and suppress colorectal cancer stem-like cells, especially in early adenomas. Curcumin shifts these cells toward differentiation, delays tumor growth in mice, and may offer a safe preventive strategy.

27 Jun 2025

Bringing microbiome science into everyday clinical care

The article summarizes results of research and possible future clinical applications of the microbiome and provides instructions for doctors.

13 Jun 2025

CT colonography outperforms stool DNA testing in cost and effectiveness

Compared to stool DNA testing, researchers found that CT colonography is a cost-saving and clinically effective method for colorectal cancer screening, according to a study was published today in Radiology, a journal of the Radiological Society of North America.

10 Jun 2025