The possible causes of blood in stool two months after hemorrhoid surgery include recurrence of hemorrhoids, rectal or anal canal polyps, dry stool or excessive straining. 1. Recurrence of hemorrhoids: If local hemorrhoids recur, it may lead to bleeding in the stool. It is recommended to do anoscopy to clarify the condition and control the blood in the stool as early as possible. 2. Rectal or anal canal polyp: it may also lead to blood in bowel movement, which can be diagnosed under anoscopy or proctoscopy and excision surgery can be performed to control blood in stool. 3. Dry stool or excessive defecation: the wound is relatively fresh and weak after surgery, and dry stool or excessive defecation leads to mucosal bleeding. If the amount of bleeding is not large, keep the perianal area clean and hygienic, apply local hemorrhoid cream or erythromycin ointment treatment, if the amount of bleeding is relatively large, it is recommended to go to the hospital under the guidance of a professional doctor to give treatment to stop the bleeding treatment. Hemorrhoids surgery two months after the blood in the stool, it is recommended to go to the hospital in a timely manner to check, clear the cause of the disease, according to the specific condition to give reasonable treatment, to avoid delaying the condition, to the body to bring about adverse effects. Drugs should be applied under the guidance of a doctor