Colorectal cancer is one of the most common malignant tumors of the gastrointestinal tract. The cause of colorectal cancer is not yet fully understood, but it is related to adenoma, polyposis, ulcerative colitis and chronic inflammation of the colon. People who often eat foods high in fat, high in animal protein and low in fiber have a much higher incidence of colon cancer than those who eat more vegetables. Colorectal cancer is not sensitive enough to radiotherapy, and chemotherapy drugs are not curable, so the current effective treatment is comprehensive treatment based on surgical resection. However, early detection and early diagnosis and treatment are more effective. To detect colon cancer early, first of all, we should be familiar with our daily bowel habits, which include many aspects, such as: bowel movement is usually dry, but suddenly becomes thin or dry in the past few days; some people have a change in the number of bowel movements, from once a day to two or three times a day, or vice versa. In short, if you have abdominal discomfort, pain, localized lumps, a feeling of urgency, changes in stool properties and shape (from dry to thin, with mucus and blood, or unshaped stools, thin and flat), i.e., if your bowel movements are different from the usual pattern, you should go to the hospital for an early specialist examination. Men over 45 years old are the high incidence of colorectal cancer. In recent years, the incidence of colorectal cancer tends to be younger due to the improvement of living standards and changes in the dietary structure of Chinese people. It is recommended that people around 40 years old should undergo colonoscopy if they have the above symptoms. Over the years, our surgery department has accumulated rich clinical experience in the development of comprehensive treatment and individualized programs such as radical colorectal cancer surgery, adjuvant chemotherapy and laparoscopic surgery. We have also accumulated a lot of experience in the comprehensive treatment of advanced colorectal cancer with resectable or unresectable distant organ metastases and with intestinal obstruction, which can greatly improve the quality of life of patients.