It is common to find blood in the stool, so go to a specialist anorectal hospital as soon as possible to receive an examination and listen to the doctor’s advice to actively receive treatment. But the reality is that many patients find blood in the stool without paying attention and go to the pharmacy to ask the doctor inside the pharmacy, the professionalism of the doctor inside the pharmacy varies plus the equipment is not complete it is difficult to find the root cause of the blood in the stool. If you delay for a long time without treatment, it will cause serious harm to your body. Generally, there is both pus mucus and blood in the feces that is discharged. Pus mucus and blood in the stool is often seen in tumors and inflammatory diseases in the rectum. The diseases that cause pus and blood in the stool are: 1. Rectal cancer: the blood is fresher or darker red, there can be mucus in the stool, and there is often a mixture of blood, mucus and stool. In the early stage, there is a slight cramping sensation is not particularly obvious. In the late stage, there will be bleeding and increased number of stools, falling, general weakness, diarrhea and so on. 2.Colon cancer: with the prolongation of the disease, stool bleeding gradually appears, mostly bloody stool containing pus or mucus, with dark blood color. In the early stage, colon cancer patients show abdominal distension and dyspepsia, then change in bowel habit, abdominal pain before stool, and later mucus stool or mucus-purulent blood stool, and after tumor ulceration, blood loss and toxin absorption, toxic symptoms such as anemia, low fever, weakness, emaciation and edema often appear. Such as the appearance of abdominal distension, abdominal pain, constipation or stool closure and other symptoms 3, ulcerative colitis: mucus stool or purulent blood stool, accompanied by pain in the left lower abdomen or lower abdomen. The initial manifestation of ulcerative colitis can take many forms, with blood in the stool being the most common early symptom. Other symptoms include, in order, abdominal pain, blood in the stool, and weight loss. Rash and vomiting. Occasionally, the main manifestations are arthritis, iridocyclitis, liver dysfunction, and skin lesions.