Hemorrhoids are swollen blood vessels in and around the anus and lower rectum. They stretch under pressure and are similar to varicose veins in the legs. Hemorrhoids are either internal or external.

  • Internal hemorrhoids develop inside the anus. They are painless and sometimes bleed a lot during bowel movements. They may also protrude during bowel movements. If they protrude from the anal opening and cannot be pushed back, they can cause severe pain.
  • External hemorrhoids develop under the skin around the anus and can easily be felt or seen as a lump. They bleed when broken by straining, rubbing, or scratching.

Hemorrhoids
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The exact cause of hemorrhoids is unknown. The major contributing factor appears to be too much pressure on the veins in the rectum. If the pressure continues, the veins become enlarged and protrude.