Diagnosing hemorrhoids relies primarily on a rectal examination, in which the doctor performs anal visualization, anal fingerprinting, and proctoscopy. Localized anal visualization: Localized anal visualization is an examination in which the doctor observes the anus with the naked eye. During the examination, the doctor observes the shape and position of the anus, the presence of blood, dampness, lumps, secretions, changes in the co-axial skin, and the condition of the anal hair at one time. The doctor mainly observes the location, status, size, and nature of internal and external hemorrhoids in the anus, the color of the hemorrhoidal nucleus surface, flatness, and the presence of rupture and bleeding spots. Changes in hemorrhoid size in relation to body position, hemorrhoids and other lesions such as anal fissure, anal fistula position relationship. Hemorrhoidal nucleus and other masses prolapse, but also to observe the orientation of the prolapse, size, morphology, the color of the surface mucosa, with or without ulceration, necrosis, bleeding points, mucosal fibrosis, whether it can be self-retracted and so on. In order to observe the prolapse of hemorrhoids, it is generally necessary to take a squatting position. Is the prolapse out of the anus, by the doctor to carry out observation. Anal finger examination: Anal finger examination is the doctor will index finger into the patient’s anus to touch the examination, in order to understand the patient’s anorectal function status as well as the situation of certain diseases. The method is simple and easy to carry out, very efficient, and is a commonly used examination method in the Department of Anorectal Medicine. Through palpation, doctors can learn a variety of information such as whether the patient’s anorectum is narrowed, whether there is a fistula, whether there is a tumor growth, whether there is any pressure and pain as well as the condition of the tissues and organs around the anorectum. Especially in some visual diagnosis can not be found or the performance of the abnormal, but the development of its surrounding specifics are not clear, it can be more clearly understood through the fingerprinting. Anoscopy: Anoscopy, also known as proctoscopy, is a method in which the doctor inserts a paraffin oil-coated anoscope into the anus to observe the internal condition of the anorectum. Through anoscopy, the doctor can observe the patient’s hemorrhoidal nucleus size, location, shape, surface mucous membrane color, erosion, bleeding, fibrosis and other conditions. In addition, it can also observe whether there is any accumulation of blood and mucus in the intestinal lumen.