Hemorrhoids blood once a month, may be because the rectal veins rupture, which leads to bleeding, should be timely medical treatment, improve the relevant examination, standardized treatment. Hemorrhoids are a common disease that can occur at any age, and its main cause is because the venous mass of the rectal anal canal is subject to compression or the influence of gravity, resulting in poor venous return to the anorectum, leading to venous stasis, and ultimately rupture caused by bleeding. Hemorrhoidal bleeding is usually fresh blood and is more common with internal hemorrhoids. This kind of bleeding is usually self-stopping, that is to say, after defecation, the bleeding will also stop by itself, because there are many muscles around the anus, and the contraction of the muscles will press the bleeding point and stop the bleeding naturally. If you bleed once a month, consider abnormal bowel movements, improper diet and other induced hemorrhoidal mucosal vein rupture bleeding, need to pay attention to preventive treatment. Hemorrhoid patients such as repeated bleeding, it is recommended that you should go to the hospital in time to check, clarify the condition, and actively give the appropriate treatment to avoid delay aggravation.