Early screening methods for colorectal cancer include annual fecal occult blood test, colorectoscopy every 3-5 years, as well as tumor markers and abdominal CT.
1. Fecal occult blood test: It is recommended that people over 50 years old should undergo fecal occult blood test once a year.
2. Colorectoscopy: It is determined according to the choice of fecal occult blood test. If the result of fecal occult blood test is positive, colonoscopy, pathological biopsy and so on are needed; if the result of fecal occult blood test is positive, it is necessary to have a colorectoscopy once in 3-5 years.
3. Tumor marker and abdominal CT examination: patients can draw blood for tumor marker test, such as tumor marker CA199, CEA and CA125, which have certain reference value, in addition, they can have CT scanning of whole abdomen.
Colorectal cancer, including colon cancer and rectal cancer, is one of the major malignant tumors today. With the change of dietary structure in China, for example, over-consumption of high-calorie and high-protein foods, the incidence of bowel cancer is gradually increasing. It should be noted that people containing a history of genetic disorders should pay extra attention and should be aware of regular screening.