What are the contents of early diagnosis of colorectal cancer

When a person knows that he or she has colorectal cancer, he or she must remain calm and go to the hospital for a more specific diagnosis to determine the condition of the disease, so that the colorectal cancer can be better controlled. Especially for those who do not like to go to the hospital for colorectal cancer treatment, if they receive care and treatment without diagnosis, the harm is very great. So, what are the contents of the early diagnosis of colorectal cancer?

1. Medical history A detailed medical history can often reveal the diagnosis of colorectal cancer. For those who are middle-aged or older and have unexplained weight loss, anemia, changes in bowel habits, mucus stool, bloody stool, intestinal obstruction, etc., the possibility of colorectal cancer should be considered. In order to detect colorectal cancer early, some people who have no obvious symptoms but have risk factors for colorectal cancer, such as those with a family history of colorectal cancer, those who have suffered from multiple colon polyposis, ulcerative colitis, CROHN disease, chronic schistosomiasis, or those who have received pelvic radiotherapy or cholecystectomy, should be followed up and reexamined regularly.
2. Early diagnosis of colorectal cancer As mentioned above, the incidence of colorectal cancer has been increasing year by year, with a high mortality rate, and the 5-year survival rate is closely related to the DUKES stage. Since the cause of colorectal cancer is unknown, the improvement of survival rate depends on secondary prevention, that is, early diagnosis of colorectal cancer. Early diagnosis includes two meanings: one is early detection, and the other is early diagnosis. At present, due to the widespread use of fiber colonoscopy, endoscopic pathological tissue sampling and biopsy have become very simple and easy, so it is not very difficult to diagnose precancerous lesions or early cancer. However, the early detection of colorectal cancer still faces many obstacles. The main reason is that the symptoms of early colorectal cancer are often hidden, and patients who come to the doctor are often in the late stage of cancer; in addition, there is currently a lack of specific laboratory examination methods for early cancer diagnosis.