Hemorrhoids are a relatively common condition, which are clusters of varicose veins. The pathogenesis of hemorrhoids are many, the exact cause is not very clear, generally consider the following many factors, mainly dietary factors, such as long-term diet chili or stimulating food, a large number of drinking alcohol leads to hemorrhoidal vein stagnation and swelling, which leads to local varicose veins. There are also rectal vein valves without branches, the blood is not easy to return, easy to stagnate, long-term sitting or squatting position leads to the human anorectal pressure by gravity and organs, rectal venous reflux obstruction leads to blood stasis and swelling hemorrhoids formation. If the patient is constipated, difficult to pass stool, the rectum and anal canal to produce a lot of pressure, which leads to anorectal venous reflux obstruction, the formation of hemorrhoids.