Blood in the stool is a common symptom of hemorrhoids, but is blood in the stool necessarily a hemorrhoid? The answer is obviously no! The first symptom of rectal cancer can be blood in stool, but it can also be accompanied by deformation of stool and the feeling of unclean stool, etc. Clinically, we often see patients with blood in stool who think they are hemorrhoids, but they remember to go to hospital for examination only when they do not improve with medicine, and the result is confirmed to be rectal cancer. The actual blood in the stool must be alert, especially if you are over forty years old, it is recommended to perform colonoscopy to rule out cancerous lesions before treating hemorrhoids to be more at ease.