Hemorrhoids

Types

Internal and external hemorrhoids divided by pectinate (dentate) line

External hemorrhoid

Thrombosed external hemorrhoid

• Internal hemorrhoid
  • Originate above the dentate line
• External hemorrhoid
  • Originate below the dentate line

Internal hemorrhoid chart

Internal hemorrhoid grades

Grade	Description	Diagram	Picture
I	Luminal protrusion above dentate line No prolapse Painless bleeding
II	Prolapse with spontaneous reduction Prolapse during straining
III	Prolapse requires manual reduction Prolapse during straining
IV	Prolapse—nonreducible Can result in edema and strangulation

See Also

• Anorectal disorders