Group 1 - The core viewpoint of the news highlights the successful early detection of colorectal cancer through the non-invasive Hua Chang Kang testing product by BGI Genomics, demonstrating its significant value in early diagnosis [1] - A shareholder, Mr. Han, participated in the company's annual shareholder reward activity and received the Hua Chang Kang intestinal health testing product, which led to the early detection of his colorectal cancer [1] - The testing revealed three positive gene methylation results, prompting further examination that confirmed the presence of a tumor, which was successfully surgically removed [1] Group 2 - According to the National Cancer Center's 2024 data, colorectal cancer is the second most common cancer in China, with a rising incidence in urban areas and a concerning trend of younger patients [2] - The "Guidelines for Colorectal Cancer Screening and Early Diagnosis and Treatment (2020)" recommend early screening for high-risk groups, including those with a family history of colorectal cancer, previous polyps, or chronic intestinal diseases [2] - BGI Genomics' Hua Chang Kang product utilizes fecal DNA methylation testing to analyze specific gene changes, providing a sensitive and specific method for detecting precancerous lesions or early cancer signals [2]