Internal hemorrhoid bleeding for more than 20 days suggests that the internal hemorrhoids are more serious, considering dietary stimulation, constipation, and anal fissure and other factors, the specific situation is analyzed as follows: 1. Dietary stimulation: if the patient has recently eaten too much spicy stimulating food, such as chili peppers, garlic, peppercorns and so on. May stimulate the gastrointestinal tract, resulting in increased gastrointestinal peristalsis, accelerated blood circulation, which in turn leads to hemorrhoids appeared to increase the accelerated increase in blood circulation, causing congestion, edema, stagnation, triggering dilation, increased pressure bleeding. 2. Constipation: If the patient has recently eaten improperly, such as overeating, or drinking less water, it may cause constipation. After the internal hemorrhoid patients defecation effort, aggravate the hemorrhoid nucleus pressure stimulation can appear internal hemorrhoid bleeding more than 20 days. 3. anal fissure: if the patient because of constipation caused by anal fissure, perianal tissue rupture can be manifested as internal hemorrhoid bleeding. And due to the stimulation of defecation, resulting in the local skin is not easy to recover, and then manifested as internal hemorrhoid bleeding 20 days. Internal hemorrhoid bleeding for more than 20 days, depending on the individual, the cause of the disease is different, it is recommended to go to the hospital as soon as possible to avoid aggravation of the condition.