Diarrhea, often with blood or pus Rectal bleeding — passing small amount of blood with stool Abdominal pain and cramping Rectal pain Urgency to defecate Inability to defecate despite urgency Weight loss Fatigue Fever In children, failure to grow Most people with ulcerative colitis have mild to moderate symptoms. The course of ulcerative colitis may vary, with some people having long periods when it goes away. This is called remissio