The etiology of hemorrhoids is not clear; consider the doctrine of subluxation of the anal cushion and the doctrine of varicose veins. It is considered to be related to a variety of factors, such as lack of venous valves in the veins of the anal canal and rectum, poor diet, poor bowel habits, occupational factors, pregnancy and childbirth, constipation and diarrhea. 1. Hemorrhoids: caused by the lack of venous flaps in the veins of the rectum and anal canal, and the obstruction of venous return due to the influence of gravitational factors. 2. Improper diet: frequent intake of spicy, stimulating food will stimulate the anal and rectal mucosa congestion and edema, resulting in hemorrhoids. 3. Bad defecation habits: squatting for a long time when relieving stool is also prone to cause hemorrhoids. 4. Occupational factors: engaged in the need to sit for a long time, stand for a long time of work, long-term also due to the rectum of the anus rectum venous reflux obstruction, easy to cause hemorrhoids flare-ups. 5. Pregnancy and childbirth are also important triggers that induce the onset of hemorrhoids in female patients, due to hormonal changes and increased abdominal pressure, so that the perianal rectal vein reflux is impeded, inducing hemorrhoids. 6. often constipation or diarrhea, repeated stimulation and damage to the mucous membranes and blood vessels of the anal canal and rectum, will also induce hemorrhoids or make hemorrhoids worse. People get hemorrhoids triggers are many, it is recommended that the crowd in daily life can try to avoid sedentary, standing for a long time, to develop a good dietary habits, to avoid frequent intake of spicy and stimulating food, etc.; often exercise anal sphincter, to avoid triggering hemorrhoids; blood in the stool, defecation pain, and other symptoms, should be timely consultation, active treatment, in order to avoid delayed condition.