Methods:72 cases adimitted for surgical treatment of mixed hemorrhoids,were randomly devided to under go PPH combined external hemorrhoid dectomy(32 cases) or Milligan-Morgan hemorrhoidectomy(40 cases).

• 将72例混合痔患者随机分成PPH组32例、剥扎组40例，分别采用PPH合外痔切除术或外剥内扎术治疗。