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===[[Internal hemorrhoid]] chart===
{| class="wikitable" 
|+ Internal hemorrhoid grades
!Grade !! Description !! Diagram !! Picture
|-
|I|| 
*Luminal protrusion above dentate line
*No prolapse
*Painless bleeding 
||[[File:Piles Grade 1.svg|140px]] || [[File:Haemorrhoiden 1Grad endo 01.jpg|140px|Endoscopic view]]
|-
|II|| 
*Prolapse with spontaneous reduction
*Prolapse during straining 
||[[File:Piles Grade 2.svg|140px]]||[[File:Hemrrhoids 04.jpg|140px]]
|-
|III|| 
*Prolapse requires manual reduction
*Prolapse during straining 
||[[File:Piles Grade 3.svg|140px]]||[[File:Hemrrhoids 05.jpg|140px]]
|-
|IV|| 
*Prolapse—nonreducible
*Can result in edema and strangulation 
||[[File:Piles Grade 4.svg|140px]]||[[File:Piles 4th deg 01.jpg|140px]]
|}

==Diagnosis==