PPH is a new technique based on the new understanding of the pathogenesis of hemorrhoids caused by anal cushion lesions. The PPH procedure is a circular excision of the prolapsed rectal mucosa above the hemorrhoid using a special instrument called the PPH anastomosis. The procedure is performed by widening the anus and suturing the rectal mucosa in a loop about 4 cm above the dentate line (the junction line between the rectum and the anal canal), then inserting the PPH anastomosis into the anus, the anastomosis can remove the prolapsed mucosal band, and the whole process only takes about half an hour. Since the rectal mucosa above the dentate line is innervated by visceral nerves, patients have almost no pain after the operation; and since the operation not only removes the prolapsed rectal mucosal band, but also blocks the terminal anastomotic branch of the terminal rectal artery, eliminating the root cause of hemorrhoids, which has very ideal treatment effects on internal hemorrhoids, external hemorrhoids, mixed hemorrhoids, circular hemorrhoids, severe hemorrhoid prolapse, prolapse, etc. It has the characteristics of quick effect, quick recovery and no pain after surgery. Advantages 1.Safety: No need to remove the anal cushion, which can preserve the normal function of the anus to the greatest extent and avoid complications such as anal stenosis and anal incontinence. 2.No pain: Pulling the hemorrhoid out of the anus back to its original position, while cutting off 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, eliminating the trouble of changing medicine after surgery, and you can resume normal life soon.