what does a hemorrhoids look like,Which diseases of the anorectal and rectum mainly refers to the "hemorrhoid fistula" in Chinese medicine?

    The research on "hemorrhoids" and "fistulas" in Chinese medicine has a history of nearly three thousand years. As early as the Spring and Autumn Period and the Warring States Period, the "Shan Hai Jing" had records of the names of anorectal diseases such as "hemorrhoids" and "fistulas". "Zhuangzi" contains "The King of Qin called for a doctor if he had a carbuncle and ulcers, he would get a ride, and those who lick hemorrhoids would get a five rides. The hemorrhoids healed, the more cars would be needed. Why are there so many cars?” It reflects that he had a good understanding of hemorrhoids at that time. "Shan Hai Jing" says: "Among them are tigers, fish-like bodies and snake tails, and their sounds are like mandarin ducks. The eater is not swollen and can have hemorrhoids." Not only the name of hemorrhoids is explained, but also the etiology and pathology of hemorrhoids are first put forward. Hemorrhoids are believed to be caused by vasodilation and blood stasis. The "Fifty-two Prescriptions for Diseases" not only contains various anorectal diseases such as "mu hemorrhoids", "dog itch" (anal itching), "renzhou out" (prolapse), and also records the world's earliest surgical treatment . Sui Dynasty Chao Yuan Fang's "On the Sources of Diseases" lists five types of hemorrhoids, 35 types of fistulas, five types of stools, and 40 types of dysentery. The knowledge of anorectal diseases is deeper than before. For example, "the prolapse of the anus also prolapses from the anus", which is often caused by a long period of dysentery due to a cold large intestine. The classification methods of "mu hemorrhoids", "hemorrhoids", "pulse hemorrhoids", "blood hemorrhoids" and "intestinal hemorrhoids" are also proposed, and the characteristics of the five hemorrhoids are explained respectively. The etiology, pathogenesis and various treatment methods of hemorrhoids and fistulas are also described in some later literatures. It can be seen that the "hemorrhoid fistula" in traditional Chinese medicine is only vulgar, which includes a variety of diseases of the anus and rectum in western medicine, such as internal hemorrhoids, external hemorrhoids, internal and external hemorrhoids, and Danshuan hemorrhoids. Polyps and hemorrhoids. Anal hemorrhoids, anal occluded hemorrhoids, anal fissures, prolapsed anus, carbuncle around the anus, anal fistula, perianal eczema, anal pruritus, etc. Some common diseases related to anorectum in Chinese medical literature are collectively referred to as hemorrhoids or hemorrhoidal fistula.