title: Bleeding from a diverticulum of the anal canal.
mesh_terms: D000368:Aged; D001003:Anal Canal / Q000002:abnormalities / Q000033:anatomy & histology; D001004:Anus Diseases / Q000150:complications* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D003248:Constipation / Q000209:etiology; D004240:Diverticulum / Q000150:complications* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D005244:Fecal Impaction / Q000209:etiology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male