It is estimated that at least 30% of pregnant women suffer from hemorrhoids. This is a very high percentage and the causes are to be sought in a plurality of factors that determine the appearance of the problem during the gestation.

In particular, hemorrhoids during pregnancy are mainly related to an increasing of volume of the uterus, which presses on the anorectal veins and bowel causing constipation, and thereby facilitates the appearance of hemorrhoids. Another significant cause demands to be sought in the hormonal changes that accompany pregnancy, which can promote the expansion of hemorrhoids.