In daily life, people suffer from anal fistula, but often mistaken for hemorrhoids, lost the best time for treatment, therefore, how to understand what kind of anal disorders they are suffering from, has a very important significance. 1, secretions and excretions: hemorrhoids, generally less anal secretions, when internal hemorrhoids are seriously prolapsed, there are secretions present, but the secretions are more thin; and anal fistula is mostly purulent things, more accompanied by odor. The actual history: hemorrhoids patients and anal fistula can cause anal swelling and pain, but hemorrhoids swelling and pain caused by internal hemorrhoids embedded or inflammatory external hemorrhoids, can be relieved after hand return to the anus; while anal fistula can be seen in the history of anal redness, swelling and pain, perianal abscess. The fistula is a fistula that has a bright red or sunken scar, and the pus flows from the fistula when pressed.