Blood in the stool four months after hemorrhoid surgery may be related to incomplete wound healing and edema of the surrounding tissues, which can be treated with warm water sitz bath or medication. Four months after hemorrhoid surgery, there is still blood in the stool, may be due to incomplete wound healing, when defecation due to muscle stretching can make the wound open, resulting in bleeding. At this time, you need to consider whether to re-sew the wound according to the wound dehiscence. If the bleeding is heavy, antifibrinolytic drugs such as aminocaproic acid can be used to stop the bleeding. The scar tissue formed when the tissue around the wound is oedematous can cause local wound damage during defecation, resulting in bleeding after defecation. At this time, warm water sitz bath can be used to treat, and attention should also be paid to perianal hygiene and cleanliness. Patients should be appropriate to carry out local anus lifting muscle exercise to improve local blood circulation. If you find blood in the stool after hemorrhoid surgery, you should consult a doctor in time, follow the doctor’s instructions, do not take medication without authorization, so as not to delay the condition. Pay attention to rest on weekdays, reasonable diet, maintain regular work and rest.