Unclean anal location is generally a situation where there is an abnormal discharge coming out of the anus, or unclean stool wiping, and may be caused by several diseases. First, it may be an anal fistula whose main symptom is that a small amount of bloody, mucousy discharge or pus and blood fluid will flow from outside the fistula. If left untreated, it is prone to malignant changes, the biggest undesirable situation being the appearance of cancer. The second is probably caused by hemorrhoids, especially that hemorrhoid attack when the nucleus of the hemorrhoid prolapses due to outside the anus, it may be difficult to wipe the stool clean resulting in dirty underwear. Once again, it may be caused by enteritis, which is triggered by bacterial infection or germ infection, and may have different degrees of purulent discharge. In addition, it may also be caused by other diseases such as anal polyps and perianal abscesses, and it is recommended to go to the hospital for diagnosis and treatment in a timely manner.