Colorectal Cancer Screening in Thailand Expands as New Blood Test Research Begins
A new molecular diagnostics study is evaluating blood-based testing to streamline colorectal cancer screening in Thailand, as medical providers address lifestyle and detection risks tied to the disease. The Department of Medical Services, through the National Cancer Institute of Thailand, partnered with Singapore-based molecular technology firm MiRXES and N Health to evaluate SEPT9 methylation testing in up to 825 participants with positive faecal immunochemical test (FIT) results, TV Pool Online reported on October 15, 2026. This research aims to determine if blood biomarkers can help prioritize high-risk patients for timely colonoscopies, though investigators stress the investigational test will not replace colonoscopy. Simultaneously, medical reports outline specific daily habits that influence colorectal health over time. According to the World Health Organization cited in the Sanook report, processed meats are classified in Group 1 with evidence that they can cause cancer in humans, with clear evidence regarding colorectal cancer, where a continuous 50-gram daily increase in processed meat consumption is associated with an increased relative risk of colorectal cancer of approximately 18 percent compared to lower consumption.
Doctors Recommend Colonoscopy Screenings Starting at Age 45
Colorectal polyps often develop without causing initial symptoms, allowing patients to maintain normal eating and drinking habits while unaware of underlying tissue growth. International medical guidelines recommend that individuals aged 45 and older begin routine colonoscopy screenings to detect and remove precancerous polyps before they advance. Dr. Trung emphasized that routine endoscopic examinations allow physicians to directly observe the intestinal mucosa, excise small polyps during the procedure, and send tissue samples for pathological analysis to determine specific risk levels.
Institutions Collaborate on Molecular Blood Test Research
The research collaboration between the National Cancer Institute of Thailand, MiRXES, and N Health focuses on identifying whether molecular blood tests can effectively triage individuals who test positive via standard faecal screening. MiRXES contributes its molecular testing technology and scientific expertise to support local laboratory capabilities in Thailand through N Health. This project parallels broader international initiatives by MiRXES, such as Project CADENCE, which investigates multi-omics blood testing for early detection across multiple cancer types. Investigators reiterate that these blood assays serve an investigative role to assist clinical decision-making and do not substitute for direct visual examination via colonoscopy.
Seek Medical Evaluation Promptly for Persistent Bowel Changes
If the body begins to show abnormalities—especially persistent changes in bowel habits—health guidance cited in the reports advises seeking medical evaluation promptly rather than waiting for the standard screening age.