Generally speaking, pus and blood stools are more serious in the same disease. Pus is the presence of inflammation in the digestive tract, whereas in pus-blood stools, not only is there inflammation in the digestive tract, but there is also a bleeding lesion in the digestive tract. Pus and blood stools have more symptoms and more complex causes, so they are often more serious than pus stools. Pus can be caused by intestinal infections, bacillary dysentery, Crohn’s disease, ulcerative colitis, proctitis, as well as intestinal tuberculosis and intestinal tumors, and is usually accompanied by abdominal pain, bloating, and diarrhea. When the intestinal mucosa is ruptured and damaged, pus and blood stools can appear. Therefore, in the same disease, pus and blood stools are often more serious than pus stools. However, there is often no comparison between different diseases. Whether it is pus or pus-blood stool, if not treated in time, effective treatment may lead to further deterioration of the disease, so the patient should go to the hospital as soon as there is any discomfort and follow the doctor’s instructions for treatment.