Bleeding in the morning stool is painless and itchy, the most common may be caused by internal hemorrhoids, rectal polyps or ulcerative colitis. 1. Internal hemorrhoids: internal hemorrhoids are varicose veins that appear in the anal canal, affected by pressure, after normal morning bowel movements, bright red blood can be found in the toilet bowl, but did not feel any anal discomfort, resulting in bleeding in the stool in the morning without pain or itching symptoms. 2. Rectal polyps: most patients with rectal polyps do not have obvious clinical symptoms, a small number of patients with rectal polyps rupture, may cause painless blood in the stool symptoms. 3. Ulcerative colitis: after being stimulated by inflammation, it is easy to lead to mucous pus and blood, so that there is blood in the feces, the patient may not be painless and itchy, may be accompanied by diarrhea and abdominal pain and other manifestations. Bleeding in the stool in the morning without pain and itchiness may also be caused by other reasons, such as colorectal cancer, peptic ulcer bleeding, esophagogastric variceal bleeding, coagulation dysfunction diseases such as hemophilia, primary thrombocytopenic purpura, purpura, etc., the patient should go to the hospital in a timely manner to improve the examination, a clear diagnosis to be treated accordingly.