Hemorrhoids are generally not cancerous from a pathogenetic point of view. This is because hemorrhoids are a type of venous tumor, or a mass of venous vessels, in which the venous plexus within the wall of the rectal-anal area is dilated, curved, and elevated into a mass, and is a benign tumor. In contrast, cancerous masses are formed by overgrowth due to immature cell differentiation. There are essential differences in the pathology and its clinical manifestations. However, it is also common in clinical practice for patients with hemorrhoids to have a combination of rectal or colon cancer, which is due to malignant changes in the affected area itself and is not related to hemorrhoids. However, such cases are most likely to be misdiagnosed, so patients with blood in the stool are advised to routinely undergo fiberoptic colonoscopy to avoid missing the diagnosis of colorectal cancer. Even if sometimes hemorrhoids become cancerous, it is due to mucosal erosion of hemorrhoids, long-term infection, especially infection with Pseudomonas aeruginosa, recurrent episodes, and perianal abscesses and anal fistulas, which are not cured for a long time and should be a complicating symptom of hemorrhoids. This shows that hemorrhoids themselves do not induce cancer. You should not be alarmed and talk about cancer when you talk about blood in the stool or feel a small bulge at the anal opening, nor should you be so concerned that you think it’s just hemorrhoids and it doesn’t matter, thus missing the diagnosis of an important disease and delaying treatment.