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Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Dec 7, 2014; 20(45): 16976-16983
Published online Dec 7, 2014. doi: 10.3748/wjg.v20.i45.16976
Table 1 Classification of internal hemorrhoids
INormal appearance externally, bleeding but not prolapsing
IIAnal cushions prolapse on straining but reduces spontaneously
IIIAnal cushions prolapse on straining or exertion and require manual reduction
IVPermanent prolapse, irreducible