When you have blood in the stool, don’t panic, read the following article carefully, have a general understanding of blood in the stool, and then conduct a self-examination from the following points to determine where the disease is. Of course, if you have any questions about your condition, we suggest you come to the hospital for a comprehensive examination, so that the doctor can interpret your disease from a medical professional perspective. A, blood in the stool is often seen in the following types of diseases: 1, anal fissure: the probability of occurrence 45%, anal fissure in the bowel movement will be due to the friction of the stool and blood in the stool, the amount of blood in the stool is not much, usually bright red in color, not mixed with the stool, but also accompanied by severe pain, will last a long time after the stool. 2, hemorrhoids: the probability of occurrence 45%, early hemorrhoids are generally painless blood in the stool, the color of blood in the stool is bright red, the amount of blood in the stool is not much, mixed with feces, usually appear on the hand paper after the stool, in the form of droplet distribution, due to the repeated friction of feces. In the middle and late stages of hemorrhoids there will be swelling prolapse, the nucleus of the hemorrhoid will appear edema, inflammation, etc., when there is also a severe pain. 3, anal polyps: the probability of occurrence of 1%, the friction of feces during defecation, so that the polyp epidermis tissue is damaged, usually painless blood in the stool, the blood is not much, the color is bright red, not mixed with feces, and also accompanied by polyps out of the situation. 4, rectal cancer: the probability of occurrence of 5%, the early stage is no sign of bleeding, only a slight feeling of swelling, let it develop, to the middle and late stage, there will be an increase in the number of bowel movements, there will be bleeding during defecation, the bleeding volume is not much, the color is dark red, to the late stage, the amount of blood in the stool will increase, accompanied by mucus exudation, emitting a foul smell. 5, digestive tract disease blood in the stool: the probability of occurrence of 1%, due to problems in life, such as diet, defecation, etc., regularly eat spicy and other irritating food, easy to stimulate the digestive tract, making the digestive tract bleeding situation. The general color of bleeding from digestive tract diseases is tar and dark brown, and the amount of bleeding is not much. Second, blood in the stool to our harm: 1, the appearance of a variety of anorectal diseases: blood in the stool as a common symptom, its appearance often indicates the emergence of some anorectal diseases. In many anorectal diseases, hemorrhoids, anal fissures, rectal polyps, colon polyps, ulcerative colitis and even rectal cancer will appear blood in the stool phenomenon. The blood in the stool often becomes a “mask” for serious diseases such as rectal cancer, allowing patients to relax their vigilance and eventually suffer the hazards of the disease. 2.Iron deficiency anemia: Long-term blood in stool can easily make patients lose a lot of iron in their bodies and cause iron deficiency anemia. Iron deficiency anemia is generally slow to develop, there can be no symptoms or mild symptoms in the early stage, when the anemia is heavy, there will be pale, tired and weak, loss of appetite, palpitations, accelerated heart rate and shortness of breath after physical activity, swelling, etc. Some patients can even appear neurological symptoms such as easy to agitate, excitement, irritability, etc. 3, anorectal diseases: some anorectal diseases are the most important cause of blood in the stool. Hemorrhoids blood in stool usually occurs during or after defecation, in the form of dripping blood or jets, bright red blood, blood and feces do not mix. Higher amounts of blood in the stool may cause iron deficiency anemia. More serious is the appearance of pale face, tiredness, loss of appetite, palpitations, rapid heart rate, etc., which affects normal life and work, and also seriously endangers physical health. In addition, anal fissures, rectal polyps, colon polyps, ulcerative colitis, etc. can occur blood in the stool. This is the most important aspect of the harm of blood in the stool. 4, intestinal malignant tumor, that is, the signal of early rectal cancer: because the case of blood in the stool is similar to the case of bleeding hemorrhoids, only from the symptoms of blood in the stool is difficult to distinguish, so some people do not pay much attention to the case of blood in the stool, so that early malignant tumors are easily ignored and lead to tragedy. Professional examination items for blood in stool: 1. Anal finger diagnosis: Anal finger is an indispensable item in the experience of blood in stool. One of the main causes of lower gastrointestinal bleeding is colorectal cancer, of which rectal cancer accounts for 60%, and rectal cancer is mostly located in the lower rectum, about 70% of which can be palpated through rectal finger diagnosis, which is a reliable and easy way to detect rectal cancer in time. If the mass and finger stained with blood or pus, then rectal cancer and polyposis should be considered. 2.Anoscopy: When patients have blood in stool, we must find the bleeding foci. We cannot conclude that it is bleeding hemorrhoids just because the patient has fresh blood in stool and simply touch the internal hemorrhoids with finger diagnosis, but we should do anoscopy to determine whether there are bleeding points or bleeding tendency in hemorrhoid mucosa. 3, painless electronic colonoscopy: lower gastrointestinal bleeding, in addition to clear anal fissure, hemorrhoid bleeding, other parts of the bleeding lesions, generally need to confirm the diagnosis through fiber colonoscopy. For lesions on the mucosal surface of the intestinal cavity, the diagnosis rate is high.