Hemorrhoids are a normal physiological structure consisting of the mucosa, blood vessels and fibrous support structures of the inner wall of the anal canal, a physiological structure that everyone has and belongs to an erectile tissue of the human body, medically called the anal cushion. In general, its veins and blood vessels maintain a certain degree of congestion and play a cushioning role to increase the sealing performance when the anal canal is closed, so that feces do not flow out. When pathological changes occur in hemorrhoids and clinical symptoms appear, they are called hemorrhoids. Pathologically, the venous plexus under the mucosa at the end of the rectum and under the skin of the anal canal becomes enlarged and varicose to form a venous mass. Not only are there a large number of highly tortuous and dilated veins within the hemorrhoidal tissue, but there is also edema of the interstitial tissue within the hemorrhoid with inflammatory cell infiltration and thrombus formation within some of the vessels. Hemorrhoids are a chronic condition in which one or more soft venous masses form as a result of varicose veins at the base of the anorectum and the anal mucosa. Usually the veins become enlarged when continuous straining during defecation causes a repeated increase in pressure within the veins here. Hemorrhoids often occur in women during pregnancy due to compression of the pelvic veins, which hinders blood circulation, and many obese people also suffer from hemorrhoids. If you have hemorrhoids, the walls of the enlarged and twisted veins in the anus become very thin, so they can easily rupture during defecation. Internal hemorrhoids are those that grow at the beginning of the anal canal. If the swollen vein is located further down, almost over the opening of the anal canal, this varicose vein is called an external hemorrhoid. External hemorrhoids can sometimes protrude or protrude outside the opening of the anal canal. However, this only happens during a bowel movement, and it retracts back to its original position afterwards. Blood clots can occur in both internal and external hemorrhoids. In the event of a blood clot, the blood in the hemorrhoid clots, which causes pain. Hemorrhoids are a common and frequent disease in humans. In 1977, we conducted an anorectal disease survey of 76,692 people in all provinces, cities and autonomous regions of the country, including industrial and mining companies, institutions, schools, troops, service industries, street residents, farmers and fishermen. The statistical analysis of the people who obtained complete information among them showed that a total of 33837 people suffered from anorectal diseases, with a total incidence rate of 59.1%, which means that nearly 6 out of 10 people suffered from this disease, of which the incidence rate of hemorrhoids was the highest, accounting for 87.25% of the total number of incidence (internal hemorrhoids accounted for 59.86%, external hemorrhoids accounted for 16.1%, mixed hemorrhoids accounted for 24.13%), other anorectal diseases accounted for 12.75%, including 4.12% for anal fissure, 0.58% for rectal prolapse, 1.67% for anal fistula, 2.85% for anal papilloma, 0.28% for rectal polyp, 0.17% for anal itching, and 3.08% for other anorectal diseases.