这种能查出癌症的体检项目，建议40岁以上要做！

Core Viewpoint - The article emphasizes the importance of undergoing colonoscopy screenings for individuals over 40 years old to detect colorectal cancer early, as the disease often develops silently and its incidence and mortality rates have been increasing in China. Group 1: Importance of Colonoscopy - Colonoscopy is the most reliable screening method for early detection of colorectal cancer, which has seen an average annual incidence increase of 3.11% and a mortality increase of 1.05% from 1990 to 2019 in China [1] - The procedure can identify polyps in the intestines, which, while usually benign, can develop into cancer if left untreated. Colonoscopy allows for the removal of these polyps during the examination [1] - It can also detect inflammatory bowel diseases such as ulcerative colitis and Crohn's disease, which require long-term management and can help in adjusting treatment plans to prevent worsening conditions [2] Group 2: Age-Related Screening Recommendations - The risk of colorectal cancer increases with age, particularly in individuals over 50, necessitating early intervention before the disease progresses [2] - The "Chinese Colorectal Cancer Screening and Early Diagnosis and Treatment Guidelines" recommend risk assessments starting at age 40, with screenings for average-risk individuals suggested between ages 50 and 75, and for high-risk individuals starting at age 40 or 10 years earlier than the youngest family member diagnosed [2][3] Group 3: High-Risk Factors - High-risk individuals include those with a family history of colorectal cancer, personal history of colorectal cancer or adenomas, long-term inflammatory bowel disease, or positive fecal occult blood tests [3] Group 4: Preparation and Procedure - Many individuals fear the colonoscopy process, but it is less daunting than perceived. Proper dietary adjustments before the procedure can enhance the examination's effectiveness [4] - The colon cleansing process is essential for a clear view during the examination, and while it may cause some discomfort, it is manageable with adherence to medical advice [4] - Many hospitals now offer painless colonoscopy options, allowing patients to undergo the procedure with minimal discomfort, and recovery is typically quick with only mild post-examination symptoms [5] Group 5: Health Investment Perspective - Colonoscopy should be viewed as an investment in health, providing peace of mind for both the individual and their family. Early detection and intervention can effectively manage many intestinal issues [5]