Stool with blood on the handkerchief generally have the following reasons: 1, proctitis, this situation is often have blood stool or have blood on the handkerchief, some may have blood clots in the stool. And this situation is due to the rectal mucosa of congestion and edema, and even the emergence of the erosion of the results.2, inflammatory bowel disease is often due to ulcerative colitis or Crohn’s disease, and the result of mucus, pus and blood stools, or stools with mucus and no pus and blood characteristics. Accompanied by intestinal appearance, such as joint pain, oral ulcers and other manifestations. 3, rectal cancer, most of this situation not only have blood in the stool handkerchiefs, but also changes in stool properties, such as stool thinning and angular or stool with the characteristics of the clot. 4, hemorrhoids may be accompanied by the possibility of this kind of pain in the bowel.