Causing blood in the anus of the stool is a symptom of blood in the stool, causing blood in the stool has the following factors: First, hemorrhoids, hemorrhoids is a common anal and intestinal diseases, hemorrhoids can cause blood in the stool, blood in the stool or blood on the handkerchief, etc. Constipation, sedentary, long-term alcohol consumption. Or eating spicy, irritating food may cause hemorrhoids. For hemorrhoids, you can take Tongtai capsule, Ma Ren soft capsule and other drugs, you can also use external hemorrhoid cream to apply hemorrhoids. To help the affected area anti-inflammatory, reduce swelling, relieve the symptoms of blood in the stool, diet should adhere to the principle of light diet, avoid spicy, stimulating food, avoid sedentary, more exercise. Second, anal fissure, anal fissure is the surface of the anal canal tissue damage, fissure formation of ulcerated surface, the main symptom is anal pain, blood, constipation, you can take laxative medication or Tongtai capsules to soften the stool, as well as 1:5000 potassium permanganate solution sitz bath to alleviate the symptoms.