Anal finger test is usually rectal finger test, rectal finger test can be used to check anal and intestinal diseases, for clinical diagnosis of disease. Rectal finger test is the doctor will insert the finger into the anal canal, so as to use the index finger to explore the situation in the anus, rectum. Thus, some lesions in the rectum can be found, such as polyps, ulcers, malignant masses, etc., which are of great value in diagnosing anorectal diseases. If the doctor touches the lump, he needs to judge the scope, location and hardness of the lesion. If the surface has blood on it, it may be caused by inflammation or tumor, and it can be initially judged as hemorrhoids, anal fissure, perirectal abscess, anal fistula, etc., or even rectal cancer. Generally speaking, the pain produced by rectal fingerprinting can be tolerated by patients, so patients do not need to be overly nervous during the examination. If the results of rectal fingerprinting are abnormal, the patient should ask the attending doctor for guidance. Once diagnosed with anorectal diseases, patients need to cooperate with the doctor to take relevant treatment measures for the cause of the disease, so as to avoid delaying the condition.