The methods to stop bleeding in stool of ulcerative colitis include enema therapy and oral drug therapy. 1. Enema therapy: ulcerative colitis can lead to erosion and ulceration of the colonic mucosa, which then breaks down and causes bleeding, leading to the symptom of blood in the stool, which can be given to mesalazine, hormones and other enemas to stop bleeding treatment. 2. Oral drug therapy: for the ulceration and the existence of blood in the stool of patients, should also actively treat the primary disease to get effective hemostatic treatment, can be given 5-aminosalicylic acid drug therapy, if not relieved, can also apply glucocorticoids or immunosuppressant drug therapy. All of the above drugs should be applied under the guidance of a doctor, if the symptoms of ulcerative colitis blood in the stool, it is recommended to go to the hospital, under the guidance of the doctor to take appropriate measures.