Long meatballs at the anal opening may be caused by hemorrhoids, rectal prolapse and rectal polyps. 1. Hemorrhoids: patients suffering from internal, mixed or external hemorrhoids, hemorrhoids appear outside the anus when straining to defecate, the phenomenon of long meatballs at the anal opening will occur. 2. Rectal prolapse: mainly refers to the rectal tissue downward displacement and prolapse outside the anus of a disease, when the rectum prolapse to the outside of the anus, it will lead to the symptoms of the anal opening meatball. 3. Rectal polyps: the mucosal surface of the lower end of the rectum tissue hyperplasia, stool from the anus, appeared outside the anus, will cause the anal opening long meatballs of the situation. After the emergence of the anal opening long meatball, there may be other factors lead to, it is recommended to timely to the hospital, give reasonable treatment. Avoid affecting defecation, changing the nature of stools or symptoms such as bloody stools and mucus. In daily life, pay attention to light diet, prohibit spicy stimulating food, reduce the stimulation of the anus.