I often encounter patients in the clinic who ask, “Do I have to have surgery for hemorrhoids? If not, will it turn into rectal cancer in the future? People often have this feeling that hemorrhoids are lumps in the anal canal and tumors are also lumps, so since they are both lumps, hemorrhoid lumps will turn into tumors. In fact, hemorrhoids and tumors are two diseases of different nature. Hemorrhoids are simply understood to be a dilation of the blood vessels and surrounding tissues under the skin at the anal verge and a proliferation, while tumors are abnormal proliferative changes in the colorectal mucosa. To give a simple example: for example, a watermelon, hemorrhoids increase in size just like the flesh inside the watermelon is getting bigger and bigger; while tumors are keloids that grow on the rind of the watermelon. One is a matter of the flesh and the other is a matter of the skin, which are two different things. Since they are two different things, why does this statement appear? Because the two diseases have a common symptom: blood in the stool. Therefore, often some patients are paralyzed and think that bleeding stool is hemorrhoids, either ignore it, or buy some hemorrhoid cream or hemorrhoid suppository at the drugstore and use it casually, or find a doctor, but the doctor is inexperienced and did not check carefully, and blindly did hemorrhoid surgery, and as a result, missed the best opportunity to operate on the tumor. Even if the doctor finds through a simple examination that the bleeding site is indeed a hemorrhoid, if you are over 45 years old, you still need to routinely have a colonoscopy for possible tumor-induced changes in bowel function and induced hemorrhoid blood in the stool. Every year, there are few patients who end up finding tumor again after surgery because of hemorrhoids. Some of them cannot be completely said to be misdiagnosed and mistreated by doctors. It is evident that blood in stool is not something to be taken care of. So as a patient, if you find blood in your stool, you should go to a regular hospital for examination to rule out tumors before treating them symptomatically. The purpose of surgery is only to help you improve your symptoms, not to say that after surgery for hemorrhoids you will not be allowed to have colorectal tumors.