Fresh blood in the stool and a little pain in the anus, may be due to hemorrhoids, anal fissure and other diseases, it is recommended that the patient timely medical examination, and under the guidance of the doctor to use the relevant drugs, or take the surgical method of treatment. 1. Hemorrhoids: the cause of hemorrhoids is not clear, may be related to poor bowel habits, sedentary standing, improper diet and many other factors. Patients with hemorrhoids may experience constipation and other uncomfortable symptoms, and excessive force during defecation may lead to capillary rupture, resulting in the phenomenon of blood in the stool. 2. Anal fissure: the cause of anal fissure is not clear, may be related to long-term constipation, fecal dryness and other factors, the occurrence of anal fissure may lead to the phenomenon of blood in the stool. Fresh blood in the stool, a little pain in the anus, may also be related to other diseases, it is recommended that patients go to the hospital in time to check, to avoid delays in the condition leading to adverse consequences.