Hemorrhoids do not hurt but affect bowel movements are usually caused by internal hemorrhoids. Internal hemorrhoids are located above the dentate line, and positional factors, physiological structure, infection, defecation habits caused by improper factors, the patient may generally have blood in the stool, anal itching and other symptoms, usually no pain symptoms, hemorrhoid prolapse may affect the discharge of stool, but when the hemorrhoidal block appeared to be incarcerated, thrombosis, necrosis, there may be symptoms of pain. Internal hemorrhoid patients usually need to drink more water, eat more fiber-rich foods, regular defecation, to keep the bowel movement, you can often warm water sitz bath, can promote perianal blood circulation, is conducive to alleviate the discomfort symptoms. It is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of a professional physician to carry out the relevant treatment.