Pus and blood stool without pain, may be colorectitis, anal and intestinal diseases, colorectal cancer, according to the cause of the choice of hanging anorectal surgery, general surgery, gastroenterology, oncology. 1. Coloproctitis: mainly due to infection and inflammation caused by the disease, currently choose to hang gastroenterology or gastrointestinal surgery. 2. Anal and intestinal diseases: such as hemorrhoids, anal fistula, anal fissure, etc., which are related to bad living habits and dietary habits, these diseases can choose to hang the Department of Anorectal Surgery, General Surgery or choose to hang the Department of Gastrointestinal Surgery. 3. Colorectal cancer: mainly including colon cancer, rectal cancer, belonging to intestinal malignant tumors, this kind of disease can choose to hang oncology or general surgery. Pus and blood stool is not painful. If you know the cause of the disease through the above departments, you should carry out regular treatment as early as possible to avoid delaying your condition.