While MRI, CT, and gastrointestinal endoscopy are all the rage, there is a simple and economical test that many people overlook, and that is the rectal finger test. The “One Finger Technique”, as it is called, is a simple procedure that can reveal diseases as small as rectal polyps, enlarged anal papillae and hemorrhoids, and as large as cancer. In the past six months, Mr. Li felt that his bowel habits had changed a bit, always wanting to defecate, but each time the volume of stool is very small, and sometimes there are bloody stools. After arriving at the hospital, the doctor routinely did a rectal finger test for him, and the result almost broke him – he suspected rectal cancer. After clinical tests, colonoscopy and other related examinations, the diagnosis of colorectal cancer was confirmed! Rectal finger examination is a necessary examination tool in anorectal department. If mucus, pus or blood is found on the surface of the finger sleeve after finger examination, it is suspected that there is inflammation or tumor tissue rupture in the rectum and anus. If necessary, taking some stool for routine and bacteriological examination or performing histopathological examination of the rectum can help in diagnosis. About 80% of rectal cancers and rectal polyps can be detected early by this test. In addition, diseases such as hemorrhoids, anal fistulas, perianal and rectal abscesses, anal papillae, and anal papillomas can also be detected by “feeling” the rectum and anus. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. Gynecological work area: It turns out that the rectal finger test can also be used to check for pelvic abscesses, pelvic inflammatory disease and other diseases in women. Gynecologists in the gynecological examination of unmarried women, in order to protect the patient’s hymen, usually use rectal finger examination to find out some conditions of the uterus and pelvic cavity. The orthopedic work area: you can’t imagine that pelvic fractures also need to “feel” the intestines, right? In fact, pelvic fractures are a common trauma. Although it is not common to see a pelvic fracture combined with a rectal injury, if the patient has significant pressure pain in the sacrococcygeal area, then the doctor has to “feel” the bowel. Because this pain is mostly caused by the sacral fracture end directly piercing the rectum, and a few can be caused by the displacement of the sacral and sciatic fractures that tear the rectum. In this case, the doctor can “feel” the broken end of the fracture, and the finger sleeve may also be stained with blood. Other work areas: ① Metastatic cancer, intra-abdominal malignant tumors, such as gastric cancer, can “fall” to the lowest part of the abdominal cavity (in the utero-rectal fossa or bladder-rectal fossa) and “take root” to form metastatic cancer, at this time, finger examination can also find the texture of the place hard thing. Some patients have unexplained high fever, convulsions, coma, etc. If the doctor finds pus and blood stool or jelly-like mucus in the patient’s rectum through finger examination, toxic dysentery will be considered. Then do a bacterial culture, if the pathogenic bacteria are found then the diagnosis can be confirmed.