During pregnancy is very easy to get hemorrhoids, this is because during pregnancy to get hemorrhoids and pregnancy pelvic cavity, abdominal pressure increases, the body hormone level changes, changes in lifestyle habits and other factors are related.1, due to the gradual increase of the uterus, extrusion of pelvic and abdominal cavities, abdominal pressure gradually increased, the vena cava reflux is not smooth, blood vessels have become more flaccid, especially hemorrhoidal veins reflux is more difficult, hemorrhoidal veins are prone to expansion of the meandering, The blood congestion will aggravate the occurrence of hemorrhoids. 2, the hormone level changes during pregnancy, progesterone increases to reduce the elasticity of venous blood vessels, easy to cause hemorrhoidal vein relaxation, expansion of hemorrhoids more prone to the onset of hemorrhoids. 3, hormone level changes during pregnancy, changes in life, dietary habits caused by gastrointestinal dysfunction easily caused by constipation, defecation, hard squeezing of the rectum and the anus, so that anal hemorrhoidal vein reflux is impeded, and further aggravate the occurrence of hemorrhoids. 4, the abdominal pressure gradually increased. 4, the usual life of hemorrhoids is more likely to suffer from hemorrhoids, before pregnancy itself has hemorrhoids, after pregnancy hemorrhoids symptoms will be aggravated.