Objective To compare the short term outcome of PPH with Milligan Morgan hameorrhoidectomy. MethodsNinety cases of Ⅲ ? Ⅳ ?degree hemorrhoids admitted for surgical treatment were randomly assigned to PPH ( n =45) or Milligan Morgan( n =45).ResultsThe difference was statistically significant between the two groups in terms of pain index ?operative time?length of hospital stay? time required for returning to normal activity and hospital fee. The above factors were found more favourable in PPH group, with no severe complications developed in neither of the two groups.The symptom improvement rate was 88% in PPH group and 81% in Milligan group.ConclusionPPH is a safe and effective procedure for Ⅲ ? Ⅳ ?hemorrhoids and its shorter term outcome is better than Milligan Morgan procedure.