1.Injection therapy: Its main principle is that after drug injection (mostly with elimination of hemorrhoid spirit), it produces sterile inflammation in the hemorrhoid nucleus, which makes it atrophy and harden, and the hemorrhoid artery reflux is closed. The injectable therapy alone has an excellent effect on the first stage of internal hemorrhoids: it is less effective on the second and third stage of prolapsed hemorrhoids, and there is a possibility of abscesses. 2.Laser therapy: The advantage is that the operation method is relatively simple and the patient suffers less. The disadvantage is that it is easy to bleed during the operation, and after the operation, it is easy to have skin drop or stenosis, and it is necessary to do skin reshaping in fashion, and the resection effect is poor. 3, copper ion therapy: the advantage of its simple operation; disadvantage is that it can not effectively remove the nucleus of hemorrhoids. 4, mucosal stapling on hemorrhoids (PPH surgery, currently more popular): the essence is to retain the integrity of the anal cushion, so that the prolapsed internal hemorrhoids upward suspension and pull, no longer prolapse, cut off the arterial return supply of hemorrhoids, so that the nucleus atrophy. The disadvantage is that postoperative bleeding is likely to occur, expensive, and cannot effectively remove the hemorrhoid nucleus directly, the lack of long-term efficacy observation. 5, hemorrhoid ligation therapy: which is divided into simple ligation method, through the ligation method and segmental ligation method. The advantages are direct removal of hemorrhoid nuclei, the disadvantages are incomplete removal of hemorrhoid nuclei, the removal process is easy to cause damage to normal tissue, and the postoperative pain is longer, more pain, more bleeding; postoperative anal edge edema is more serious, and easy to cause urinary retention and anorectal stenosis. 6.Doppler-guided hemorrhoid artery ligation: The principle is to ligate the superior hemorrhoid artery to block the reflux supply of hemorrhoids. The disadvantage is that it cannot remove the nucleus of hemorrhoids, and the second and third stage of severe hemorrhoids are prone to recurrence. But the current hemorrhoidal artery ligation plus suspension can make up for some of the shortcomings, and most anorectal experts are more recognized.