Hemorrhoids are most often caused by a subluxation of the anal cushion, or a varicose rectal vein inside the anus. Therefore, in the beginning, the patient’s stool may be hard and dry, only once in 2-3 days, sometimes accompanied by constipation, when defecation will cause the surface of the hemorrhoid nucleus to break, there is bleeding from the anus after defecation, bright red blood, or may be fresh blood on the surface of the stool, usually after standing up the bleeding can stop on its own. In the early stage, there can be no swelling protruding from the anus, but in the later stage, the disease gradually progresses and then there is a protruding hemorrhoid nucleus in the anus, and it is accompanied by pain and edema. If the hemorrhoid protrudes very significantly and is difficult to return, that is, if the internal hemorrhoid of degree IV, it will cause the patient to have difficulty in defecation, and sometimes the pressure on the feces can lead to deformation of the stool, and the performance of thin stool.