Hemorrhoids

  • Hemorrhoids are blood vessels (veins) in the anal canal. When those blood vessels become swollen or dilated, symptoms may develop. Many people have hemorrhoids, but have no symptoms.
  • External hemorrhoids are dilated veins covered by the skin near the anal opening. They may be felt as bumps or lumps near the outside of the anus, and become painful when they are swollen with blood.
  • Internal hemorrhoids are dilated veins that form inside the rectum and above the anal opening, and are therefore “internal”. However, in some situations they may enlarge and protrude (prolapse) out of the anus.