The main reason is that surgeons do not strictly perform essential medical rules and simplifies preoperative preparation and broaden indications of operation and unreasoningly enlarge operative area.

• 其原因主要是医生受各种情感因素的影响,降低了对医疗核心制度的执行标准,简化了术前准备,放宽了手术适应证,非理性地扩大了手术范围。