Many patients ask: Can hemorrhoids turn into rectal cancer? The answer is very simple, hemorrhoids will not turn into rectal cancer. Hemorrhoids and rectal cancer are two very different diseases. Hemorrhoids are a common benign disease in human beings, and there is a popular saying that “nine out of ten people have hemorrhoids”. Rectal cancer (or anal canal cancer) is a malignant tumor. However, the two diseases can have some of the same symptoms. For example, blood in the stool, discomfort or pain in the stool, etc. Therefore, clinically, we often see patients with rectal cancer treated as hemorrhoids for a long time, and as a result, timely treatment is delayed. The biggest similarity between the symptoms of rectal cancer and hemorrhoids is blood in stool, but if we can master some basic common sense, we can still avoid misdiagnosis. First of all, in addition to blood in stool, rectal cancer may also be accompanied by other symptoms such as change in stool habit, which used to be regular, but now it is not, and the habit has changed. There is also a change in the stool shape, for example, the stool used to be formed in strips, but now there is often mucus stool, or normal stool with mucus. In addition, there may be indentations in the stool pattern. The most important thing is to come to the hospital to see your doctor when you have abnormal bowel movements. A simple anal examination by a doctor can basically explain the problem. Because most rectal cancers can be detected by anal examination. If you see the doctor when he has not done the anal examination, such a conclusion is not credible.