Poor appetite and blood in stool may be caused by intestinal lesions, hemorrhoids, anemia, etc. They can be treated by light diet, regular meals, removal of intestinal lesions, surgery, iron supplementation and blood transfusion. 1. Poor appetite: Eating nutritious and light food, regular meals, moderate exercise and adequate sleep can improve the patient’s appetite and symptoms of poor appetite. 2. Intestinal lesions: Blood in stool may be caused by intestinal lesions. Intestinal polyps, colorectal tumors, etc. can lead to blood in the stool, weakness and symptoms, should go to the hospital in a timely manner in the colonoscopy under the intestinal polypectomy or intestinal tumor resection and other treatments. 3. Hemorrhoids: Hemorrhoids cause blood in stool, weakness and poor appetite can be relieved by changing diet, eating more crude fiber food, changing bad bowel habits and warm water sitz baths, etc. Hemorrhoids can be removed through anal endoscopy. 4. Anemia: the feeling of weakness may be due to anemia, blood in the stool leads to long-term chronic blood loss and then lead to anemia. Can be treated by eating iron-rich foods or iron supplementation, hemoglobin seriously reduced patients can also be treated with blood transfusion. After the symptoms of weakness, poor appetite and blood in the stool, you should go to the hospital in a timely manner to clarify the cause of the disease and early treatment to avoid further development of the disease.