External and Prolapsed Hemorrhoids

We all have two kinds of hemorrhoidal veins: internal, inside the anal passage, and external, on and around the anus.  When inflamed internal hemorrhoids end up protruding outside the anal opening, usually because they are pushed out by passing stool, during a bowel movement, they are called prolapsed hemorrhoids.  These cause even more discomfort than external hemorrhoids, unlike internal hemorrhoids, which are painless because there are no pain receptors inside the anal passage. External hemorrhoids are the ones which are right at the anal opening or around the anus,...