Although the generation of hemorrhoids is related to many factors, it is still not a good explanation for the occurrence of hemorrhoids, so there are many theories about the generation of hemorrhoids, in addition to the above, there are also the theory of vascular proliferation, the theory of anal stenosis, etc. The main ones are: 1. varicose vein theory It is believed that hemorrhoids are formed due to uprightness, lack of valves in hemorrhoidal veins, sphincter spasm and fecal impaction, which leads to anorectal venous reflux obstruction and varicose hemorrhoidal veins. It is believed that the submucosal tissue above the dentate line contains a large number of sinusoidal blood vessels, smooth muscle, elastic fibers and connective tissue, which make up the rectal spongiosa, which will proliferate and hypertrophy with age and form hemorrhoids. 3.The theory of anal cushion downshift The mucous membrane and submucous membrane above the dentate line contains venous plexus, Treitze muscle and connective tissue, collectively known as “anal cushion”, which is a normal anatomical tissue. It is believed that when the “anal cushion” is enlarged, hypertrophied, or relaxed due to changes in the support of the anorectal wall, or changes in the tension of the anal sphincter, the anal cushion is displaced downward and costs the disease. 4, anal canal stenosis theory that the contraction of the fiber belt (pectus carinatum belt) causes the narrowing of the anal canal, resulting in the sphincter not being completely relaxed when the stool passes, the stool can only be squeezed out under pressure, and thus the hemorrhoidal vein plexus is squeezed between the fiber belt and the stool block, causing the hemorrhoidal vein to expand and become hemorrhoids. The exact cause of hemorrhoids is not yet unanimously understood, but it is mainly related to anatomical factors, dietary factors, genetic factors, pregnancy and childbirth, occupation and age, body position, constipation, mechanical injury, inflammation and so on. Chinese medicine believes that the occurrence of this disease is mostly related to wind, dampness, stasis and qi deficiency, coupled with the internal organs are weak, wind, dryness, dampness and heat forced down, stasis blocking the pranic door, stagnation of blood and turbid gas stagnation does not disperse, tendons and veins across the solution, resulting in the dysfunction of the internal organs and hemorrhoids. 1, wind injury intestinal complex wind is good at moving and several changes, and more heat, blood does not follow the meridian and overflow blood, the blood under the bright red color, blood under the rapid jet-like. 2.Dampness and heat are often caused by poor diet, eating cold and fatty food, which injures the spleen and stomach and breeds internal dampness. The dampness and the heat are knotted, resulting in internal hemorrhoids in the anal area, which are caused by the intertwining of the blood and the meridians. If the blood does not follow the meridians, it will overflow and cause blood in the stool. If the damp heat is injected into the large intestine, the intestinal qi is not smooth and the meridians are blocked, then there is a block in the anus that comes out. 3.Qi stagnation and blood stasis Heat stagnation and intestinal dryness, Qi stagnation and poor operation, Qi stagnation and blood stasis in the anus, so the masses in the anus prolapse, swelling and pain. If the qi is not smooth, the blood does not follow the meridian and thrombosis is formed. 4.Spleen deficiency and Qi trapping The elderly, women who have too many children and children with prolonged diarrhea and dysentery have abnormal spleen and stomach functions, spleen deficiency and Qi trapping, lack of Qi, and inability to take in, resulting in the prolapse of hemorrhoids that cannot be retracted. Spleen deficiency, lack of Qi and blood biochemical source, the inability to take in blood, resulting in Qi and blood deficiency, so the amount of blood and light color.