Faced with the high incidence of rectal cancer, patients with blood in the stool who cannot tell the difference on their own, with or without hemorrhoids should go to the hospital and ask a doctor for an examination. For patients who have previously been found to have hemorrhoids and have long-term symptoms such as bloody stools, they should also go to the hospital for regular review and must first rule out other diseases of the intestines before undergoing treatment for hemorrhoids. The cost of “anal examination + microscopy = 10 yuan” can rule out 40% of colorectal cancer cases. Therefore, finger diagnosis is still a very high confidence-price ratio test. The finger directly touches the mucous membrane around the rectum for examination, and the preliminary diagnosis is made. If you feel a raised grain inside, it may be a hemorrhoid, and if you feel a cauliflower lump in the intestine or an ulcer with a raised edge and a depressed center, or a combined intestinal stricture. If there is blood, thick fluid and mucus on the finger sleeve after examination, then rectal cancer is highly suspected. This examination method is simple and easy to perform in clinical practice, and is a common screening tool. Generally speaking, anal finger examination can detect more than 75% of rectal cancers. However, due to the limitation of the length of the doctor’s finger and the experience of anal examination, patients are recommended to go to a specialist clinic for the examination. For patients with tumors in the upper rectum that are difficult to detect and those with high clinical suspicion of rectal or colonic tumors, colonoscopy should be performed. In addition to colonoscopy, biopsy can be performed for more accurate pathological diagnosis. Therefore, don’t delay the early diagnosis and treatment of rectal cancer and other diseases because you know part of the medical knowledge and are paralyzed by carelessness and “self-perceived hemorrhoids”. And regret!