Conclusions Abnormal pregnancy-labor history is not only associated with chromosome aberration, but also with chromosome polymorphism.
结论异常孕产史不但与染色体畸变有关，与染色体多态性也有关联。
The main causes in sequence were abnormal position of the fetus, asphyxia, monstrum, premature labor, and pathological pregnancy.
围产儿主要死因顺序为胎位异常，窒息，畸形，早产和病理妊娠等。
Results Factors inducing poor wound healing included perioperative infections, pregnancy co-morbidities, abnormal labor stages, and poor surgical skills.
结果围手术期感染，术前存在基础疾病，产程异常，手术的操作是影响切口愈合的主要因素。
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