After defecation there is a flip out to consider the rectal prolapse, hemorrhoids and other diseases is more likely. Rectal prolapse: refers to the rectal mucosa layer or rectal wall whole layer out of the anus. Rectal prolapse typical symptoms of defecation or increased abdominal pressure will have a swelling out of the anus, the swelling is generally not round, bright red, the surface of mucus or blood. Rectal prolapse is usually not accompanied by painful symptoms, but there can be anal incontinence, constipation, bleeding, anal swelling, defecation and other symptoms. Hemorrhoids: symptoms of a lump prolapsing out of the anus after defecation can also occur. Hemorrhoids can be divided into internal hemorrhoids, external hemorrhoids and mixed hemorrhoids. internal hemorrhoids and mixed hemorrhoids of stage II or above can have lumps prolapsing out of the anus after defecation, and in severe cases, there will be prominent lumps in a circle of the anus. There may be other reasons why a circle of flesh turns out after defecation, it is recommended to go to the hospital in time, under the guidance of the doctor for examination and treatment.