Blood when wiping with diarrhea is often associated with hemorrhoids, anal fissures, intestinal polyps, bacterial dysentery, inflammatory bowel disease and colorectal cancer. Patients are advised to seek timely medical consultation in gastroenterology and anorectal surgery to clarify the cause and give reasonable treatment to improve the symptoms of having blood after stool. Common causes and treatment methods are as follows: 1, hemorrhoids: diarrhea when the hemorrhoids are compressed, prone to rupture and bleeding, so manifested as blood in the stool, it is recommended to change habits, avoid sedentary, drink more water, do not eat spicy and stimulating things, such as chili peppers, etc., while eating more fresh fruits and vegetables, such as peaches, oranges, etc.; 2, anal fissure: anal fissure patients in diarrhea can lead to blood in the stool, with blood dripping during defecation or blood wiped on the paper after the stool. The first thing to do is to keep the stool open, and it is recommended to adjust the diet, in addition to warm water bath to relieve the symptoms, you can use external hemorrhoid cream to promote the healing of the fissure, and if necessary, surgical treatment; 3, intestinal polyps: polyps are soft and easy to bleed after being stimulated by the stool, often manifested as blood in the stool or direct blood under the stool, mostly treated by endoscopic polyp removal, it is recommended to diversify the diet, eat more fresh fruits and vegetables, such as white radish, apple, etc., to increase the intake of dietary fiber. 4, bacterial dysentery: mostly caused by unclean diet, germs infect the human body through the gastrointestinal tract, causing inflammation and ulceration of the colonic mucosa, resulting in abdominal pain, fever, mucopurulent stools and other symptoms, antibacterial treatment with oral antibiotics, such as ciprofloxacin; 5, inflammatory bowel disease: such as Crohn’s disease, ulcerative colitis, mostly manifested as abdominal pain, diarrhea, mucopurulent blood Stool. At this time should drink more water and supplement the body needs of various nutrients. Commonly used drugs are 5-aminosalicylic acid and salazosulfapyridine; 6, colorectal cancer: cancerous tissue rupture and bleeding by stool friction, mostly manifested as diarrhea, bloody stool, etc.. Early stage can be recovered after surgery to remove tumor, while middle and late stage need to be treated with chemotherapy. Daily diet is recommended to be light and nutritious.