Types

External: A thrombosed external hemorrhoid is a hemorrhoid with multiple blood clots that can be seen and felt under the skin around your anus. It is usually moderately to severely painful. Internal: forms a cushion of blood vessels in the lining of the anal canal.

There are several types:

  • Grade I: No prolapse, just prominent blood vessels
  • Grade II: Prolapse (protruding) upon bearing down, but spontaneous reduction
  • Grade III: Prolapse upon bearing down requiring manual reduction
  • Grade IV: Prolapse with inability to be manually reduced

Statistics

  • 30-40% prevalence rate in the USA alone
  • 75% of people will suffer from hemorrhoids in their lives
  • Extrapolated numbers on some European countries

Symptoms

  • Bleeding after passing stool
  • Mucous discharge
  • Redness, soreness/pain and swelling around the anus
  • Lump hanging down outside the anus
  • Pruritus ani

Causes

  • Constipation (difficulty emptying the bowel), long-term diarrhea, obesity, age,
  • familial history, pregnancy, lifting heavy objects, sitting for extended periods of time – not proven –

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