When edema and bleeding occur after prolonged anal meatball protrusion, it may be due to thrombosed external hemorrhoids, rectal polyps, anal papilla hypertrophy and other factors. 1. thrombosed external hemorrhoids: patients with long-term protruding anal meatballs may be due to thrombosed external hemorrhoids, which may rupture when they are rubbed, resulting in edema and bleeding. 2. Rectal polyps: usually due to viral infection, heredity and other factors lead to rectal mucosa protruding into the intestinal lumen of the superfluous organisms, due to inflammation, friction and other factors of stimulation, may lead to rupture of the polyp, resulting in bleeding, edema phenomenon. 3. Anal papilla hypertrophy: usually due to chronic inflammatory stimulation and other factors lead to fibrous connective tissue proliferation, in defecation, there will be swelling out, if not treated in time, may lead to local erosion, edema, bleeding, pain and other uncomfortable symptoms. Long-term anal meatball protrusion, edema and bleeding, may also be related to other causes, it is recommended that timely medical examination, and under the guidance of the doctor to clarify the cause of the disease, to take the right treatment, to avoid aggravation of the condition, resulting in adverse consequences.