External vs. internal hemorrhoids
External: dilated veins from inferior hemorrhoidal plexus distal to dentate line (sensate area)Internal: dilated submucosal veins of superior rectal plexus above dentate line (insensate area). Not painful.
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External vs. internal hemorrhoids
External: dilated veins from inferior hemorrhoidal plexus distal to dentate line (sensate area)Internal: dilated submucosal veins of superior rectal plexus above dentate line (insensate area). Not painful.