Clinical often encounter patients with a small amount of blood in the stool that is to think of whether they have an incurable disease, all day long worried, until the hospital thoroughly check before as a heavy burden, but also some patients often blood in the stool, thought it was hemorrhoidal bleeding, do not take it seriously, missed the best time for treatment. Many people can not tell the difference between the two, the two should be how to identify it? First, the source is different Hemorrhoids is the lower rectum, anal canal and anal margin of the venous plexus varicose veins formed by the mass, its bleeding is mainly due to various reasons (such as squatting, immunity, long-term oral anticoagulant, alcohol, spicy stimulation, etc.) resulting in vascular mass of the local breakage caused by. Rectal cancer belongs to malignant tumor, which is “abnormal tissue” of human body. The essence of rectal cancer is tumor cells and small blood vessels supplying tumor cells. Therefore, the source of bleeding is mostly caused by the infiltration of cancer into rectal mucosa, which results in the ulceration of its surface or the rupture of cancer itself. Characteristics of blood in stool Hemorrhoidal bleeding is characterized by bleeding in defecation or after defecation, which is usually not mixed with stool, with bright red color, sometimes there is a small amount of blood attached to the surface of stool or the handkerchiefs are dyed red, sometimes there is dripping blood, sometimes there is visible blood in the form of jet, and the bleeding stops on its own after defecation. Bleeding from rectal cancer is characterized by blood mixed with stool, usually in dark red color, sometimes only sticky blood on the surface of stool, blood in stool is often mixed with feces, mucus, pus, or occasionally accompanied by blood clots and necrotic tissue. Blood in the stool can not stop by itself. Third, accompanying symptoms The accompanying symptoms of bleeding hemorrhoids mainly include: 1, prolapse: early only blood in the stool, there is no prolapse; second-phase internal hemorrhoids with defecation prolapse, can be self-returned after defecation; third-phase can not be self-returned, have to use the hand to retract, and even in the exertion or coughing can be prolapsed. 2, pain: internal hemorrhoids are generally painless, if there is internal hemorrhoid prolapse embedded can appear severe pain. 3, anal itching. 4, Anal swelling. There are many accompanying symptoms of rectal cancer, mainly including: 1. Rectal irritation symptoms, common diarrhea, urgency and feeling of incomplete defecation, sometimes defecation several times a day, but the amount of each time is not much. Some patients may show alternating diarrhea and constipation. 2. Symptoms of narrowing and obstruction of intestinal lumen. The cancer infiltrates the intestinal wall and narrows the intestinal lumen, causing the stool to become thin and deformed, and in serious cases, defecation is difficult. Signs of consumption: Long-term chronic consumption of malignant tumor may cause anemia, emaciation and other signs of cachexia. Metastatic signs. Rectal cancer usually has no pain, but the cancer infiltrates the anal canal and sphincter, then the pain is obvious. Malignant tumor cells can be transferred to other parts, such as liver and lungs with blood and lymph. The malignant tumor cells can metastasize to other parts with blood lymph, such as liver, lung, etc. It can also directly infiltrate into the adjacent tissues, such as urethra, vagina, prostate, etc., and produce symptoms in corresponding parts. First of all, anal finger diagnosis can be carried out, because most of hemorrhoids and rectal cancer occur in the parts that can be touched by fingers. If the finger can be touched from anus, and there are soft raised mucous membrane nodules without pressure and pain on the surface, then hemorrhoids will be seen; if there are cauliflower hard lumps or ulcers with elevated edges and depressed center in the intestines, and the intestinal lumen is narrowed to accommodate one finger, then the finger should be examined and then the finger should be used to check the condition. If you feel a hard lump of cauliflower or an ulcer with a central depression and find that the intestinal lumen is so narrow that it can only accommodate one finger, and if there is blood or mucus on the finger cuffs after examination, it is very likely that you have rectal cancer. Secondly, anoscopy, electronic colonoscopy, magnetic resonance and other auxiliary tests are usually needed to confirm the diagnosis. Warm tips If you have blood in stool, you should not take it lightly and must go to a specialist for examination to exclude the possibility of rectal cancer.