Patients often have blood in the stool and it does not hurt, the reasons are as follows: 1. Internal hemorrhoids: this is a type of hemorrhoids, because internal hemorrhoids are mainly above the anal dentate line, innervated by visceral nerves, so there is no obvious pain, there will be blood in the stool but not pain. Because hemorrhoids usually bleed after a bowel movement and are fresh blood, if they are simple internal hemorrhoids there is no obvious pain. If you find that blood in the stool does not hurt, it is advisable to go to a regular specialist hospital and find a specialist doctor to do rectal diagnosis as well as anoscopy to further clarify the diagnosis. 2. Tumor: There is also no obvious pain at this time, if you find that blood in the stool does not hurt, you must go to a regular specialist hospital to exclude tumors so as not to delay the treatment of the disease.