Patients with hemorrhoids presenting with blood in the stool but no painful symptoms are considered to have internal hemorrhoids. Because internal hemorrhoids are located above the dentate line, an area that is part of the innervation of the visceral nerves, they are relatively insensitive to painful stimuli and more sensitive to the pulling reflex. The main symptom of a patient with internal hemorrhoids is blood dripping from the stool and also unformed bowel movements, which can also lead to the occurrence of anemia after prolonged and repeated episodes. The most effective treatment for internal hemorrhoids that require systematic treatment is surgery to remove them. The most effective treatment is surgical removal of the internal hemorrhoids. Stage I and II internal hemorrhoids can also be treated by ligation or by injecting sclerosing agents into the nucleus, which can gradually shrink and fall off.