In the clinical work, we can often see some so-called “bleeding hemorrhoids” patients who come to the clinic, but after examination, it is actually rectal cancer, and the course of the disease has been weeks or even months, and individual patients come to the clinic only when they can’t get rid of their stools, which is often at the advanced stage and directly affects the treatment effect. Research has found that most of the bowel cancers are transformed from benign adenomas, and if the adenomas are treated at the stage of adenomas, they will not turn into cancers; even if they have already turned into cancers, if they can be detected at an early stage and treated at an early stage, the result will still be good. Therefore, it is recommended that patients with blood in the stool should be vigilant and not be too confident that it is hemorrhoids, and timely consultation at a regular hospital may save your life. There is another situation that patients do have hemorrhoids, but at the same time combined with intestinal cancer, only that the intestinal cancer grows in a higher part, which cannot be felt by rectal fingerprinting, and both can have blood in the stool, but the condition is completely different. Without thorough examination, the treatment of bowel cancer will be delayed if only hemorrhoids are handled. A patient had intestinal obstruction half a year after hemorrhoid surgery in a foreign country, and after checking in our hospital, he found that it was sigmoid colon cancer complicating intestinal obstruction, and then underwent surgical treatment. If a thorough examination had been done half a year ago, the diagnosis would not have been missed, and if the bowel cancer had been treated promptly at that time, the therapeutic effect would have been different from that of the treatment half a year later. Therefore, for patients with hemorrhoids, it is better to consider more complicated.