Hemorrhoids hemorrhoidal block prolapse has been flowing, accompanied by pain symptoms, mostly due to the anal closure is not strict secretion outflow, or hemorrhoidal expansion of the nucleus of the hemorrhoids lead to tissue fluid extravasation and other factors lead to. 1. anal closure is not strict: hemorrhoids hemorrhoid enlargement prolapse in the anus, easy to lead to the anal closure is not strict, rectal mucus outflow out of the anus, at the same time due to hemorrhoids embedded in the anus, the patient is accompanied by pain and other symptoms of discomfort. 2. hemorrhoidal expansion: when the hemorrhoidal core prolapse embedded in the anal opening or thrombosed external hemorrhoid formation, due to the hemorrhoidal core venous stasis expansion, the surrounding tissue fluid circulation is impeded, the formation of extravasation, so the patient more watery secretion, accompanied by edema pain. It is generally recommended that patients with the above mentioned symptoms should go to the anorectal department of the hospital in a timely manner, to clarify the condition, choose the appropriate treatment under the guidance of a professional doctor, and give the treatment as soon as possible to avoid delaying the aggravation of the condition.