Patients with anorectal diseases need to be examined with anal finger test, including visualization and palpation. 1. Visualization, anal finger test will firstly observe the outside of the anus to see whether there are obvious lesions around the anus. 2. Palpation, then, the doctor will use the finger to touch the outer edge of the anus and about 7cm inside the anus to check whether there are any positive signs. Before palpation, the doctor wears gloves, the right index finger is coated with lubricant, the patient relaxes the anus, and the position can be chest and knee, truncal position, and left side lying position. During the examination, the right index finger gently and slowly enters the anal canal from the anal opening and slowly touches the anal canal and the mucosa of the lower part of the rectum to see if there is any abnormality, and then withdraws from the index finger after the examination and observes the secretion on the glove of the right hand index finger to determine the possibility of some of the diseases. Anal finger test is the most commonly used and the simplest method of examination, through the anal finger test can effectively find the anal and rectum around the emergence of disease.