At present, the incidence rate of colorectal cancer in our country is getting higher and higher. Middle-aged people over 50 years old are especially high. Colorectal cancer usually has no obvious symptoms in the early stage. When many patients are diagnosed, they are already in the middle and advanced stage, and the best time for treatment has been missed. Colonoscopy is very important for timely detection of colorectal cancer. Therefore, doctors suggest that colonoscopy should be conducted for both high-risk groups and general risk groups of colorectal cancer. Who belong to the high-risk group and the general high-risk group? High-risk groups: 1. Age: 50 ~ 75 years old; 2. Family history: First-degree relatives (parents, brothers and sisters, children) suffer from Read More …