Minimally invasive hemorrhoid surgery (PPH), also known as anastomotic suprahemorrhoidal circumferential hemorrhoidectomy, is a new technique based on the theory of the anal cushion, using anastomosis to treat cricoid prolapsed hemorrhoids. The Italian scholar Dr. Antoniolongo successfully developed in 1993 a hemorrhoid anastomosis specifically for the treatment of II-IV hemorrhoids that does not destroy the normal physiological function of the anal cushion and significantly shortens the operation time and greatly reduces postoperative pain. It is an effective treatment for severe prolapsed internal hemorrhoids by circumferential excision of the rectal mucosa and submucosal tissue. To date, 300,000 hemorrhoid patients worldwide have successfully undergone PPH surgery, and in China, nearly 15,000 patients have successfully undergone the procedure since its inception in 2000. PPH, or anastomotic supra-hemorrhoidal mucosal circumcision, is suitable for all types of hemorrhoids, especially for patients with severe internal hemorrhoids and partial rectal mucosal prolapse. The principle of PPH is to preserve the anal cushion and perform instantaneous anastomosis while removing part of the hyperemic internal hemorrhoid and the suprahemorrhoidal mucosa and submucosal tissue in a circular fashion. The blood supply of hemorrhoids is blocked and the slipped tissue is suspended and fixed, restoring the pathological anal cushion to its normal anatomical state. It has the characteristics of quick effect, quick recovery and no pain after surgery. Technical advantages 1.Safety: no need to remove the anal cushion, retaining the normal function of the anus to the greatest extent and avoiding complications such as anal stenosis and anal incontinence. 2, painless: pulling back the hemorrhoid out of the anus to its original position, while truncating the blood vessels that provide blood to the hemorrhoid, without damaging the perianal skin, so there is almost no pain after the operation. 3.Little trauma and quick recovery: The anastomosis circumferential resection of mucosa is a non-open wound with little bleeding, which eliminates the trouble of changing medicine after surgery and allows you to resume normal life soon. 4.Clinical hemorrhoids, multi-flap hemorrhoids, giant isolated hemorrhoids, internal hemorrhoids, mixed hemorrhoids, circumferential hemorrhoids, embedded hemorrhoids, rectal mucosal prolapse, etc. 5.Suitable object: Because of less damage, it is especially suitable for middle-aged and elderly people, white-collar people who pay attention to efficiency and patients with recurrence of traditional treatment and prolapse of rectal mucosa. Second, what is the difference between PPH and traditional surgery 1, the surgical site in the anal opening, and PPH surgical therapy site in the lower rectum, the traditional surgery will remove the external hemorrhoids, internal hemorrhoids ligation, anal trauma, the need for the process of denudation, postoperative daily drug changes, fumigation, drug changes. The wound hurts severely during defecation and can only heal gradually. In contrast, PPH surgery is performed in the lower rectum, and the anastomosis is performed at the same time, and the whole procedure takes only a few minutes, preserving the anal cushion tissue, with no trauma in the anus and no denucleation process. The first day after the operation, you can defecate normally, and there is no need for special drug changes and fumigation. Traditional surgery requires cutting the sphincter to prevent anal stenosis, but PPH surgery does not damage the sphincter, so no anal stenosis or fecal incontinence will occur. Traditional surgery is symptomatic treatment, while PPH surgery method is to treat the cause. 2.PPH surgery preserves the anal cushion, does not damage the anal sphincter, there is no surgical incision in the anus, and the physiological function of the anal cushion is retained to the maximum extent, so it has: (1) no pain after surgery (2) short operation time, little damage, fast recovery (3) no damage to the anal sphincter, no fecal incontinence, anal stenosis (4) low recurrence rate of hemorrhoids, beautiful appearance