The cause of the disease is not yet fully understood, but it is related to many factors. There have been early studies in Chinese medicine. For example, the famous Chinese medical classic "Huang Di Nei Jing" pointed out that it is related to improper diet, frequent daily life, and feeling of damp heat. Medical scientists in the Tang and Song Dynasties also suggested that it was related to long-term tolerance of stool, chronic diarrhea, excessive drinking, excessive addiction to spicy, qi deficiency in the elderly, pregnancy of women, and prolonged sitting and walking. Modern medicine believes that it is related to the following factors:
(1) Reasons for anatomy According to investigations, reptiles such as cows, horses, dogs, and rabbits are not allowed to have hemorrhoids. Only people who stand upright are prone to hemorrhoids. Because the local anatomy of the rectum and anus has not evolved to adapt to an upright posture. For example, the superior rectal vein and its branches have no venous valve, and the anorectum is in the sagging part of the human body. When the blood flows back to the heart from bottom to top, it is affected by the attraction of the earth's center, which may easily cause congestion and expansion of the venous plexus in the anorectal area. Long-term staying in this unchanged upright position will form hemorrhoids; when the anorectal veins pass through the muscularis of the rectum and anal sphincter, muscle contraction, fecal compression, and increased abdominal pressure can hinder the return of blood, leading to The formation of hemorrhoids; the tissues of the rectal submucosa are loose, the resistance around the blood vessel wall is weak, the venous plexus is easy to expand and congestion into hemorrhoids. In the past ten years, medical scientists believe that hemorrhoids are anatomically normal tissues. Anal cushions exist at the embryonic stage. With age, the supporting and fixing tissues above and around the anal cushions degenerate and degenerate, and they lose support and fixation efficiency. The blood vessels swell and move under the anal cushion to the anal canal, which becomes a hemorrhoid. This is related to the proliferation and prolapse of the anal cushion, which is called the modern theory of "anal cushion downward movement".
(2) Occupational reasons: Sedentary is not good for blood, long-term qi and blood are crisscrossed with meridians. Sitting for a long time for a long time, overworked, injures the intestines and stomach, resulting in turbid qi congestion, bleeding into the anus and hemorrhoids. According to the census data, the incidence of hemorrhoids varies greatly in different working positions. For example, the incidence of hemorrhoids is 73.5% for people who stand for a long time, 72.9% for sedentary people, 66.1% for people who walk for a long time, and people who are not fixed. It accounts for only 43%. Therefore, long-term sitting, standing, and squatting working postures will directly affect the pelvic blood circulation, causing the venous plexus to expand and congestion into hemorrhoids.
(3) In terms of living habits, the ancients said that “eating is not regular, drunk and full, eating fat, pepper is spicy...five hemorrhoids will be born under the wind and heat.” According to the general survey, drinking too much alcohol and eating spicy food, as usual Eating mustard, pepper, onion, garlic, wine, etc. can directly stimulate the anorectal mucosa, and you will feel burning pain when you defecate after overeating. Although it is not necessarily the direct cause of hemorrhoids, it has a certain effect on the induction or aggravation of hemorrhoids. There is a significant difference between the length of squatting in the toilet and the incidence of hemorrhoids. Some people are used to reading books and newspapers during defecation. The incidence of hemorrhoids can reach 72.41% for those who need to squat for more than 10 minutes, and 57.88% for those who squat within 10 minutes. Therefore, squatting on the toilet for a long time is a bad bowel habit, because the continuous increase in abdominal pressure directly affects the anorectal venous blood return At the same time, sphincter relaxation can cause rectal mucosa prolapse, which is an important cause of hemorrhoids.
(4) Gastrointestinal reasons: Spleen and stomach disorders, damp-heat bets, astringent qi and hemorrhoids. Chronic diarrhea, chronic diarrhea, chronic diarrhea, the incidence of hemorrhoids can be as high as 80%. Due to long-term diarrhea, inflammation of the rectum and increased stool frequency, causing frequent irritation of the anus and rectum, causing phlebitis and perivenous inflammation of the venous plexus, resulting in brittleness of the vessel wall, secondary vasodilation and congestion, causing hemorrhoids or aggravating hemorrhoids . Diarrhea causes increased abdominal pressure, anorectal congestion, varicose veins, anal sphincter relaxation, frequent bowel movements, and over time, the rectal mucosa separates from the muscle layer to form hemorrhoids; long-term constipation, the incidence of hemorrhoids is 74.5%, because stool is in Retention in the rectum for too long presses and stimulates the intestinal wall and affects the return of blood from the venous plexus. Dry stools, long defecation time, increase abdominal pressure, congestion in the anorectal area, and varicose veins into hemorrhoids.
(5) Reasons for increased abdominal pressure. Women's pregnancy, obstruction of the gate, overflow of the meridians, leakage of the intestines, and accumulation of hemorrhoids. The higher the number of pregnancies, the higher the incidence of hemorrhoids. According to statistics, the incidence of hemorrhoids can reach 78.2% for those with three or more pregnancies. The result is that the venous return is blocked due to the enlargement of the uterus during pregnancy and compression of the pelvic and rectum. Men’s prostate hypertrophy and urethral stricture Poor urination will inevitably increase abdominal pressure and affect the anorectal venous blood return; anorectal stenosis, such as lower rectal hypoplasia stenosis, internal sphincter spasm, will cause long-term defecation, causing the lower edge of the internal sphincter to thicken and veins Congestion, congestion of the anal pad and slide down into hemorrhoids.
(6) Other diseases: loss of qi and blood, subsidence of qi deficiency, accumulation of anus, conflicts into hemorrhoids. Such as liver cirrhosis, portal hypertension, emphysema, heart disease, etc. can directly hinder the return of rectal venous blood, causing the rectal venous plexus to expand into hemorrhoids. In recent years, studies have suggested that portal hypertension is the direct cause of hemorrhoids, but such patients can cause hemorrhoids that are difficult to manage.