The symptoms of pus in the stool are considered to be related to the following diseases: 1. Infectious diseases of the intestinal tract, caused by various causes of intestinal infections, can appear symptoms of pus in the stool, the most common disease is bacterial dysentery, can do routine blood tests, routine stool tests and stool culture and other tests to clarify the diagnosis, ulcerative colitis, proctitis, intestinal tuberculosis and other diseases, can also cause symptoms of pus in the stool, need to do colonoscopy and other tests to clarify the diagnosis. 2, perianal diseases, such as perianal abscess, anal fistula and other diseases can also cause symptoms of pus in the stool. 3, after the breakage of intestinal tumors, the above symptoms may also appear. If you have the symptoms of pus in the stool, it is recommended to go to a qualified specialist hospital as soon as possible for a clear diagnosis and better treatment to avoid delaying the condition.