Before treating hemorrhoids, it is necessary to understand what hemorrhoids are. Modern medicine considers hemorrhoids to be a pathological enlargement of the “anal cushion”. The anal cushion is an anatomical structure born from parents with a specific physiological function and has an irreplaceable function in maintaining the delicate self-control of the anal canal. It is only when the pathologically enlarged “anal cushion” shows symptoms such as bleeding and prolapse outside the anus that it is called a hemorrhoid requiring treatment. There are also three stages in the treatment of hemorrhoids. The first is the adjustment of life and living, such as attention to diet, rest, proper exercise, etc.; second, conservative treatment can be considered, such as the use of appropriate suppositories, venous function enhancers, etc.; if the above methods do not work for more than 3 months, and the symptoms worsen and affect daily life, surgical treatment can be considered. The latest surgical treatment concept is the treatment of preserving the “anal cushion”, which is commonly known as the surgical treatment of preserving the “hemorrhoid”. It can improve the symptoms, relieve bleeding and prolapse, while maintaining the form and function of the anal cushion. The PPH procedure, which is more commonly performed in China, is a theoretical “supra-hemorrhoidal mucosal circumcision” that completely preserves the anal cushion tissue. The minimally invasive hemorrhoidectomy TST, which is based on the combination of traditional surgical methods and modern “hemorrhoid” treatment theory, preserves part of the anal cushion, making hemorrhoid surgery basically a painless, non-bleeding operation.