Eight-year-old children with blood in the stool may be associated with rectal polyps, anal fissure, hemorrhoids and other diseases, need to consult a doctor in time to clarify the cause of the disease, and then targeted treatment. 1. The typical symptom of rectal polyps is fresh blood in the stool and covered on the surface of feces without mixing with it. It is mainly treated by surgery, including electrocautery excision, transanal excision, microsurgical excision under anoscopy, and open surgery. Open surgery is suitable for endoscopic polyps that are difficult to be completely removed and cancerous polyps that are located high up. 2. The typical symptom of anal fissure is bleeding, which is caused by fecal injury to the wound. The amount of bleeding is usually not much, and it can be seen as blood in the stool, dripping blood, and bright red blood. Common treatments include non-surgical and surgical treatments. Non-surgical treatments include 1:5000 potassium permanganate warm water sitz bath after defecation, oral laxative or liquid paraffin to loosen and lubricate stools, etc. Surgical treatments include internal anal sphincter amputation and fissure resection. 3. The typical symptom of hemorrhoids is blood in stool, which usually manifests as blood in stool or dripping blood, and the bleeding sometimes stops on its own after bowel movement, but it can also manifest as jet-like bleeding in severe cases. The treatment of hemorrhoids is based on surgical and non-surgical treatments, including the use of non-steroidal anti-inflammatory drugs for pain relief, such as acetaminophen, etc., and the use of erythromycin ointment to prevent infections, etc.; in addition, surgical treatments can be used when non-surgical treatments are not effective. If you find eight-year-old children with fresh blood in the stool, you should consult a doctor in time, under the guidance of the doctor’s treatment, not unauthorized use of medication, so as not to delay the condition. Pay attention to rest on weekdays, reasonable diet and avoid overwork.