The full name of “An’s therapy” is “An’s therapy for anorectal disease” or “An’s anorectal disease therapy”, which is taken from the personal name of the inventor and founder of the therapy, Professor An Ah, a famous anorectal specialist in China. It is the only treatment named after the last name of the anorectal profession at present. “An’s therapy” was fully formed in the late 1980s, and is a series of treatments for anorectal diseases created by Prof. An Ahh after learning from the successful experience of his predecessors and relentlessly exploring and combining his own clinical practice experience. The method is a combined Chinese and Western medicine therapy involving various common and multiple diseases in the anorectal field, featuring short operation time, little damage, quick recovery and no complications and sequelae, and has very good curative effects on a variety of anorectal diseases, which has caused a sensation in the anorectal community at home and abroad and won the recognition and praise of peers. As early as 1991, this achievement was recommended by the State Science Committee to exhibit at the World Invention Expo in Brussels. The miraculous method and the immediate effect of the treatment shook the whole exposition and won three first prizes, which was the highest prize among the medical inventions in China, and he was also appointed as a judge of the medical expert group of the exposition and listed in the 40th Eureka Who’s Who. Since then, “An’s Therapy” has been selected as a national continuing medical education program by the State Administration of Traditional Chinese Medicine, the Chinese Medical Association and the Chinese Society of Traditional Chinese Medicine, and has been selected by the Ministry of Health as one of the “100 Projects of the Decade” and promoted nationwide. In addition, “An’s Anorectal Diseases” and “An’s Atlas of Anorectal Diseases”, edited by Prof. An Ahh, have been reprinted and issued by People’s Health Publishing House for many times, which is the only series of anorectal monographs published by People’s Health so far. At present, “An’s therapy” has been applied in the clinic for nearly 30 years and has been recognized by the majority of patients with anorectal diseases. The following is a brief introduction to the features and advantages of An’s therapy for various types of anorectal diseases A. Astringent and stasis-clearing method (Paeoniflora injection method) for the treatment of internal hemorrhoids The internal hemorrhoid injection method is a method of treating internal hemorrhoids by injecting special drugs into the hemorrhoid body and acting directly on the lesion. The injection therapy has been used in western countries for nearly 150 years, while in China it emerged in the 1950s, and after continuous development, two treatment methods have emerged, the necrotic withering method and the sclerosing atrophy method, and the drugs used are called necrotic agent and sclerosing agent respectively. The necrotrophic method uses a necrotrophic agent that acts on the hemorrhoid tissue to cause direct protein denaturation and necrosis on the one hand, and on the blood vessels and blood-forming components on the other hand to form thrombi that block the blood supply to the distal tissues and indirectly promote local tissue necrosis. After the necrotic hemorrhoids fall off, the wound can repair and heal on its own. The sclerosis and atrophy method uses the inflammatory effect of sclerosing agents to cause fibrosis within the hemorrhoid, thereby occluding small blood vessels and atrophying the adherent hemorrhoid nucleus for therapeutic purposes. Theoretically, both methods can treat bleeding and prolapse caused by internal hemorrhoids, and the clinical practice has indeed proven their better efficacy, but the inevitable problem is that both methods also bring many complications and sequelae. The necrotic withering method improperly used, can cause ulceration, infection and secondary hemorrhage, and the contraction of the wound scar after healing can also cause anal canal and rectal stenosis; sclerosing effect of the sclerosing agent is achieved by reducing the concentration of the drug on the basis of the necrotic agent, the two are only different between strong and weak, so it is inevitable to cause complications such as infection necrosis and bleeding, and excessive sclerosis can also lead to mucosal sclerosis and It can also cause sequelae such as mucosal sclerosis and rectal scarring stenosis, and difficulty in defecation. In response to these problems, Prof. An Ahh, after reviewing a large number of ancient Chinese medical books and modern domestic and foreign literature, proposed a new treatment for internal hemorrhoids in the 1980s, namely “astringency and stasis removal”, and based on this treatment, developed a new treatment for internal hemorrhoids in 1986, consisting of citric acid, gallic acid, and paeonia lactiflora, the active ingredients of Chinese medicine, Ume plum, Wu Bei Zi and Paeonia lactiflora. This name is the original name of Paeoniflora injection, where “86” stands for successful development in 1986 and “AN” is Professor An’s surname “An”. is the last name of Professor An himself. In the early nineties, the drug began to be used as an in-hospital preparation for clinical application under the name of “An’s Hemorrhoid Solution”, and in 2003, it passed the approval of the State Drug Administration as a new drug and received the national Class II Chinese medicine new drug certificate, and was officially named “Paeoniflora Injection”. At the end of 2003, it was approved as a new drug by the State Drug Administration and received the national Class II Chinese medicine new drug certificate. Paeoniflora injection is an injection for internal hemorrhoids based on the method of astringent and stasis removal, while drawing on the successful formulas and experience of ancient and modern healers, and made from purified Chinese herbs. The drug is a softening and shrinking agent, and a lot of clinical and basic research shows that it has the efficacy of astringency and shrinkage, fixing astringency and resolving blood stasis to stop bleeding, and the drug itself has no toxic side effects, and no infection and bleeding, local hard nodes and anal stenosis will occur after use. At present, Paeoniflora injection has been widely used in the clinic, according to incomplete statistics, hundreds of thousands of patients receive Paeoniflora injection treatment every year, and it is praised by the majority of patients because of its good efficacy and less pain. The entire procedure is divided into three steps: “segmental excision of external hemorrhoids”, “ligation of internal hemorrhoids” and “injection of residual internal hemorrhoids”. Compared with the traditional external hemorrhoid circumcision and external hemorrhoidectomy, the segmental hemorrhoidectomy has the characteristics of small incision, less bleeding, quick recovery and less pain, and because most of the skin of the anal margin is preserved, it will not cause anal stenosis due to excessive skin damage and scarring. The ligation method combined with peony injection method for internal hemorrhoid treatment can shorten the time of ligation line shedding and the trauma after shedding is greatly reduced compared with the trauma at the base of direct ligation, and with the effect of shrinking hemorrhoid nuclei and veins after peony injection, it can achieve the purpose of healing internal hemorrhoid and shorten the recovery time and avoid the possibility of heavy bleeding, and it will not cause excessive ligation and rectal stenosis caused by PPH surgery The treatment will not cause excessive ligation and rectal stenosis caused by PPH surgery. This method is based on the traditional anal fissure excision and internal sphincter severing, and was created by Professor Ahn based on the theory of “pectus carinatum”. Only the thickened part of the lower edge of the internal sphincter is cut to release the spasm and the scar, so the wound is superficial, bleeding is less, and recovery is faster. Moreover, since the fibrotic sphincter has been loosened during surgery, even the anal stenosis caused by it can be removed, so there is no need to dilate the anus after surgery and damage to normal muscle tissue is avoided. The traditional cure for perianal abscess and fistula is to cut open and drain all the internal orifices, pus cavities and fistulas, which is especially suitable for small lesions, but when the lesions are extensive, it is necessary to make large or complex incisions, which often leads to slow healing and greater pain for patients, and sometimes even causes scar contracture after healing. sometimes even cause deformation and displacement of the anus due to post-healing scar contracture. The “main focal incision and counter-oral drainage” was first applied to treat perianal abscess by Prof. An Ahh in 1983 (see Journal of Anal and Bowel, Vol. 3, No. 2, 1983), and then gradually applied to the operation of complex anal fistulas after continuous improvement and refinement. After many years of clinical observation, this method has proven to be effective, overcoming the shortcomings of traditional methods and having the advantages of less damaged tissues, faster wound healing, shorter treatment course and smaller scarring. In the case of complex anal fistula, the endograft and the main fistula are the main part of the pathogenesis and the key site for treatment, which is the main focal point. Different surgical methods are used for the main fistula and the branch fistula to cure the fistula and avoid damaging the anal sphincter and affecting anal function. The main fistula is fully incised, so that the internal and main ports are completely open and conducive to drainage; the branched tube is left open and the external port of the branched tube is widened so that it forms a counterpart to the main fistula incision for drainage, which not only allows adequate drainage and healing of the branched tube, but also avoids multiple severance of the sphincter due to the incision of the branched tube. In addition, since both the main focal incision and the branched incision are radially centered on the anus, the postoperative scar is small and can avoid anal deformity. Throughout the whole procedure, the principle of fistula treatment that maximizes the protection of the sphincter muscle and does not affect the function and appearance of the anus is reflected. In the case of perianal abscess, the internal opening is the main focal point, and the location and size of the main focal incision and other incisions are based on the principle of unobstructed drainage of the pus cavity, which can also achieve the effect of reducing trauma and protecting the function and appearance of the anus. The traditional treatment for perianal abscess and fistula is to use silk thread or leather band to chronically strangle and cut the abscess or fistula to make it heal gradually. Under certain medical conditions, this is a good way to treat high abscesses and fistulas. However, it is undeniable that there are still some insurmountable drawbacks of thread hanging therapy: (1) the patient suffers a lot of pain, as the thread hanging method relies on the continuous strangulation of silk or leather band to achieve the purpose of cutting, and this continuous pressure stimulation makes the anal pain intense; (2) the healing time is long, and the conventional time of thread hanging off is 7-15 days, if the thread is loose and not cut open, it is necessary to tighten the thread for the second or even the third time, which not only aggravates the patient’s pain, but also prolongs the healing time; (3) it can (3) can cause anal deformity or functional abnormalities, hanging wire continuous strangulation stimulation can aggravate the local inflammation, so that the fibrous repair process is abnormal, even if the wound heals, the anus often appears sulcus defect or even incomplete incontinence; (4) easy to recur, because hanging wire therapy using rectal wall stoma, the operation is blind, so it is very easy to miss the real source of infection (i.e., the internal port), resulting in postoperative recurrence. In view of the above shortcomings and deficiencies, An’s therapy uses non-hanging wire low incision high latex tube drainage method to treat high abscess and anal fistula. After clinical practice and observation, it not only avoids the long time persistent pain caused by the traditional hanging wire operation with continuous strangulation, but also has less damage and no risk of anal incontinence. Moreover, as long as the internal opening and high lesions are all open and drainage is complete, the recovery is generally faster and non-recurring after the operation, and the scar is lighter after the wound healing, which does not affect the appearance of the anus. Sixth, peony injection plus mucosal ligation method for rectal prolapse Rectal prolapse refers to a disease in which the anal canal, rectal mucosa, the whole rectum, or even part of the sigmoid colon is displaced downward or even prolapsed out of the anus. In children, it is a self-limiting disease, and most of them can gradually return to normal on their own as they grow older, while in adults, the onset of prolapse increases gradually with time. Long-term recurrent prolapse can cause nerve damage and lead to anal incontinence, and complications such as bleeding, edema, strangulated necrosis, and skin eczema may occur, so active treatment is needed. The main method of treatment for this disease abroad is dissection and suspension fixation or excision of the prolapsed segment, so complications (infection, intestinal obstruction) and sequelae (constipation, defecation difficulties, anal incontinence, abdominal pain) of surgery cannot be avoided. Although these sclerosing agent injection methods avoid the pain of surgical opening, they require strict intraoperative aseptic conditions, the depth of the injection site is not easy to grasp, and the postoperative pain of fasting and abstinence is relatively high, and the recurrence rate is also higher. Especially the complication of deep infection is inevitable, which mostly makes the operator have worries. The basic method of An’s therapy for rectal prolapse is peony times injection point and column injection, because peony times injection is neither a necrotizing agent nor a sclerosing agent, but a softening and shrinking agent, which can shrink the mucosa after injection and make the mucosal layer and muscle layer adhere, so it can effectively avoid many sequelae such as infection, necrosis bleeding and mucosal sclerosis, and has higher safety, since 1989 peony times injection method has been applied for nearly Since 1989, the peony injection method has been used for nearly 30 years, and no significant side effects have been reported. In addition, the peony injection method also has the characteristics of less pain, short treatment course, easy operation and remarkable efficacy and repeatability, which is easily accepted by patients. Anorectal stenosis is the narrowing of the anus or rectal cavity, resulting in the obstruction of the discharge of intestinal contents. Surgery for anorectal diseases is the main cause of scarring anorectal stenosis. The use of caustic drugs or loop excision in the treatment of external hemorrhoids can cause large damage to the skin of the anal canal, and the scar contracture after healing can cause anal stenosis; in the treatment of internal hemorrhoids, the anastomosis of suprahemorrhoidal mucosal loop (PPH) and ligation of internal hemorrhoids can cause rectal stenosis if the ligation points are too deep and in the same section. Conventional hanging, incision and dilation methods for scar stenosis only temporarily sever the scar, but the severed area can form a new scar through fibrous repair, leading to recurrence of stenosis. Pathological studies have shown that after local injection of Paeoniflora multiflora injection, it can cause protein coagulation and denaturation in a short time, while chymotrypsin can rapidly decompose the denatured protein, and the two together can reduce or even eliminate the scar; in addition, Paeoniflora multiflora injection has anti-inflammatory and anti-infection effects, which can inhibit inflammatory stimulation and new scar formation. According to clinical observation, this method is effective and can effectively treat various scarred anorectal stenosis. The main pathological feature of familial adenomatous polyposis is multiple adenomatous polyps, the number of which is usually more than 100, with the left hemicolectomy being the most numerous and the rectum the least, and the stomach and duodenum being involved in about 5% of cases. It is a recognized precancerous lesion, and according to statistics, 40% to 50% of them can be transformed into adenocarcinoma. The main treatment methods are surgery and endoscopic resection. The surgical method is very effective, but it requires open abdomen to remove the intestinal canal of the lesion, and in severe cases, the entire rectum and colon are removed and a permanent ileostomy is made, so the functional effect is poor and therefore not accepted by some patients. Endoscopic electrosurgery has less impact on the function of the gastrointestinal tract, but the number of adenomas is large, and the removal process is tedious and cannot avoid missing, so it is only suitable for those with large tumors. An’s therapy for this disease mainly adopts the method of internal administration of Chinese herbal medicine plus enema, which is effective for sure. For those who have small and few tumors in the early stage of the disease, this method can cure them radically and save them from surgery; for those who have severe disease, it can also delay the development of the disease, improve the general symptoms and improve the quality of life. Professor An A Yue believes that this disease is caused by congenital deficiency of endowment, deficiency of qi and blood, and easy to feel external evil, and the external evil enters the interior and turns into heat, which causes heat and poison to congestion of qi and blood in the intestine. Therefore, the treatment method should be to support the righteousness and dispel the evil, and combine the internal medicine with enema, and treat both inside and outside, attacking and supplementing at the same time, in order to be effective.