1, the pathogenesis and classification of hemorrhoids Hemorrhoids its pathogenesis currently has two mainstream theories, one is the rectal anal canal plexus varices caused by, and the other is caused by the anal cushion subluxation. In clinical work, both theories have been found to manifest in patients. Hemorrhoids can be divided into external, internal and mixed hemorrhoids depending on the severity of the condition and the extent of the venous plexus involved. External hemorrhoids are those that involve only the external venous plexus, internal hemorrhoids are those that involve only the internal venous plexus, and mixed hemorrhoids are those that involve both the internal and external venous plexus. 2.Predisposing factors Long-term constipation, long-term diarrhea, the preference for spicy food and alcohol, long-term sitting, etc. The two clinical symptoms of hemorrhoids are: painless blood in the stool and prolapsed hemorrhoids in the anus during stool. The blood in the stool is fresh blood, which can be manifested as blood on the stool table or on the stool paper, dripping blood, spraying blood, or in large amounts, blood flowing like an injection. 4.Stage Hemorrhoids can be divided into four stages: Stage I hemorrhoids only have blood in the stool and do not include prolapse; Stage II hemorrhoids have blood in the stool and include prolapse during the stool, but the hemorrhoid can be returned after the stool; Stage III hemorrhoids show blood in the stool and include prolapse during the stool, and the hemorrhoid can be returned after the stool, or need to be pushed back by hand; Stage IV hemorrhoids show blood in the stool and include prolapse during the stool, and the hemorrhoid is prolapsed as the main symptom, and the hemorrhoid cannot be returned by hand after the stool, or it can be returned after walking or coughing, The hemorrhoid is usually painless. The hemorrhoids are generally painless, but thrombosed external hemorrhoids, inflammatory external hemorrhoids, and mixed hemorrhoids can be accompanied by pain or even severe pain when embedded. 5.Treatment principle One or two stage hemorrhoids can be treated conservatively; three or four stage hemorrhoids and one or two stage hemorrhoids with serious blood in the stool need to be treated surgically. 6, prevention Mainly for hemorrhoids susceptibility factors, develop a good diet and bowel habits, eat more fresh fruits and vegetables, eat more coarse fiber food, increase the amount of stool, to ensure daily bowel movements, to avoid long-term constipation, fruit bananas, dragon fruit, kiwi, apples and so on, cinnamon, lychee and other easy fire fruit eat less. Try to eat less spicy food, less alcohol, to avoid long-term intestinal stimulation to long-term diarrhea; avoid prolonged standing, sitting, sitting for more than an hour after the appropriate activities, or do a few anal exercise; avoid long toilet, defecation, do not read newspapers, magazines, cell phones, etc., as far as possible to control the defecation time within 5 minutes.