A diseased intestine means that toxins will accumulate in the body, and improper diet can easily “eat” people to death. Colorectal cancer is one of the most common anal tumors, which has a high mortality rate and is a nightmare for many people. Experts say that the best way to prevent and detect colorectal cancer is to treat it as early as possible. Some people will be curious, how do I know if I have cancer, do I have to prevent it all the time even if I am not sick? In fact, there is a basis for the prevention of colorectal cancer. Because before the occurrence of colorectal cancer, there often exists a long period of precancerous disease in the intestine (colorectal polyp – a kind of benign intestinal tumor), which has a crucial early warning role for the occurrence of bowel cancer. Generally speaking, the average time from adenoma to cancer is about 5 to 7 years. At this stage, doctors can remove the adenoma through colonoscopy to prevent the development of colorectal cancer. Even if the adenoma has started to become cancerous, if the cancer cells have only invaded the most superficial layer of the large intestine (mucosal layer), the doctor can remove this tumor under colonoscopy and achieve a cure. Here we should mention a very important issue, that is, how to detect colorectal cancer or precancerous disease of colorectal cancer as early as possible. Experts point out that among the colorectal cancers detected by screening, “curable cancer” can reach more than 90%. Therefore, establishing correct dietary habits and actively participating in regular health checkups are the key issues to prevent colorectal cancer. Experts remind our friends that regular health checkups and good living habits have a positive effect on their health. Don’t miss the opportunity to have health checkups because of the trouble or because you feel good about yourself.