The anus belongs to the department of anorectology because it is the last organ of the human digestive tract and its location is at the end of the human intestine, and its main function is to help smooth digestion and the elimination of gases as well as waste products. Due to the special physiological structure of human beings, there are often anal diseases to see what department, the specific need to be based on the specific cause of the disease. If there is eczema around the anus, you can go to the dermatology department, if there are hemorrhoids, perianal abscess, anal fistula, anal fissure and other perianal diseases, you need to see the anal surgery department, if there are small hospital departments, the subspecialties are not as detailed as in large hospitals or the hospital subspecialties themselves are not specific, if there is general surgery, you can also go to the general surgery department for consultation. In summary, once you have an abnormal disease in the anal area, you should be treated in a timely manner.