#Screening

A small new study found high rates of precancerous colon polyps in marathon and ultramarathon runners. The research raised questions about extreme exercise and early-onset colorectal risk (New York Times) (New York Times).

The finding matters because many Thais run for health and for charity. The result may change how doctors advise endurance athletes in Thailand.

An oncologist in Virginia recruited 100 runners aged 35 to 50 for colonoscopies. He saw almost half with polyps and 15 percent with advanced adenomas (New York Times).

A groundbreaking medical investigation has uncovered disturbing correlations between extreme endurance running and precancerous colon abnormalities, potentially transforming how physicians advise Thailand’s rapidly expanding marathon community. The research challenges decades of assumptions about exercise and cancer prevention, revealing that even activities traditionally considered purely beneficial may carry hidden health risks that demand immediate attention from Thai healthcare providers.

The study’s implications resonate powerfully throughout Thailand, where marathon participation has surged dramatically in recent years, with charitable running events becoming deeply embedded in temple culture and community fundraising traditions. Thai families increasingly encourage running as virtuous physical activity that aligns with Buddhist principles of caring for the body, making these unexpected findings particularly significant for a population that views distance running as inherently healthy and spiritually meaningful.

A major new review has found that today’s young adults face a dramatically higher risk of rectal cancer, revealing that individuals born in 1990 are up to four times more likely to develop this malignancy compared to those born just 40 years earlier. The sweeping analysis, published in the British Journal of Surgery and led by scientists at the Dana Farber Cancer Institute and Harvard Medical School, documents surging rates of gastrointestinal cancers—not just in the United States but across developed nations following Western lifestyle patterns. These findings have far-reaching implications for global health, and offer critical lessons for Thailand as it grapples with shifting demographic and health threats.

Alarming international research published in the British Journal of Surgery documents that young adults born in 1990 face up to four times higher rectal cancer risk compared to those born just 40 years earlier, revealing a catastrophic generational shift in gastrointestinal cancer patterns that reflects the devastating health consequences of Western lifestyle adoption—a trend with urgent implications for Thailand as urbanization, dietary modernization, and sedentary behaviors accelerate across all socioeconomic levels. This comprehensive analysis from Harvard Medical School and Dana Farber Cancer Institute scientists demonstrates surging rates of early-onset gastrointestinal cancers across developed nations, offering critical warnings for Thai healthcare policy as the kingdom confronts similar demographic and lifestyle transformations.

A new nationwide survey published in June 2025 has revealed a remarkable reduction in hepatitis C prevalence across Thailand—a development hailed by public health leaders as evidence that the country’s decades-long prevention and screening efforts are working. The research, conducted in four regions of Thailand among over 6,000 participants, found that the current rate of hepatitis C infection is just 0.56%, down from 2.15% in 2004 and 0.94% in 2014. This progress comes even as the World Health Organization warns globally that viral hepatitis deaths are rising, with 1.3 million fatalities each year according to its 2024 Global Hepatitis Report (healio.com), making Thailand’s performance uniquely encouraging (nature.com).

A new wave of research has sounded the alarm on a widespread but often overlooked health threat: metabolic dysfunction-associated steatohepatitis (MASH), a “silent disease” that afflicts about 16 million Americans—most of whom don’t know it. Recent studies published in major medical journals, including The Lancet and findings summarized by the Daily Mail, reveal that a staggering 80% of those living with this deadly form of fatty liver disease remain undiagnosed, raising urgent concerns for public health systems, including here in Thailand (source, Wikipedia, Asia-Pacific Trends PDF).

Prostate cancer has once again captured global attention following the recent diagnosis of former US President Joe Biden, shining a spotlight on a disease that is the most common cancer among men worldwide. While headlines often tout new prevention measures or promising lifestyle tweaks, leading experts have clarified that the factors most responsible for a man’s risk of developing prostate cancer lie largely beyond individual control: age, ethnicity, and family history. This evidence-based perspective, backed by the latest research, has vital implications for men in Thailand, where rising cancer rates are signaling the need for smarter screening and public health strategies.

A recent research breakthrough offers new insight into why colorectal cancer cases are climbing among younger adults, a trend that has alarmed public health officials worldwide, including in Thailand. For years, scientists have noted a disturbing shift: while colorectal cancer rates decline among older adults, young people are increasingly being diagnosed, often at later—more dangerous—stages. The implications are significant for Thailand, where cancer remains one of the top causes of death, and awareness of early-onset colorectal cancer is still developing.

A startling new study is sounding the alarm about a possible factor behind the rising rates of colorectal cancer in younger people—a gut-derived toxin that could be fueling early-onset cases of the disease. The research, recently covered by NPR (source), shines a spotlight on an emerging health concern that cuts across demographics worldwide, including right here in Thailand.

For many Thais, colorectal cancer has been long thought of as an illness affecting mainly older adults. However, recent statistics from both global and Thai cancer registries show a disquieting trend: people under 50 are being diagnosed with the disease at significantly higher rates than in previous decades (source, source). As lifestyles change, with more Westernized diets, sedentary habits, and rising obesity, experts have wondered what else might be driving the sharp increases among the young.