胎盘植入极易导致围产期难以控制的大出血，危及孕产妇生命，是产科棘手的难题。随着剖宫产率的提高、二孩政策全面开放以及影像技术的发展，胎盘植入的发生率及诊断率逐年升高。目前，国内外指南处理胎盘植入仍以子宫切除术为重要方式，随着产科止血方式及介入手术技术的发展，结合患者保留子宫意愿，有关胎盘植入保守手术治疗理念在世界范围内受到重视，并逐渐体现出更多的优势。其中“3-P”类型手术得到广泛接受和改良推广，并结合医院设备条件及医生手术经验，采用不同的阻断子宫血管方式，再进行植入胎盘-部分子宫肌层切除术加子宫重建术，达到减少出血量的同时最大限度地保留了子宫，避免了子宫切除及相关不良影响。

Placenta accreta，as an obstetrical conundrum，often leads to perinatal hemorrhage，which is difficult to control and endangers the life of pregnant women. The incidence and diagnosis rate of placenta accreta is increasing year by year and more and more women are being diagnosed due to the high rate of cesarean section，the adoption of a domestic second-child policy and the development of imaging technology. To date，worldwide guidelines or consensuses still consider hysterectomy as a mainstay in the treatment of placenta accreta. With the development of obstetric hemostasis and interventional surgery，and with the increase of patient's willingness to retain the uterus，conservative surgical treatments for placenta accreta have gained increasing popularity and acceptance all over the world and have shown more and more advantages. Of these，the "3- Procedure" surgery has been widely adopted，modified and promoted，and based on the conditions of hospital equipment and the experience of obstetricians，different methods have been used to block the uterine blood vessels， followed by partial placental-myometrium resection and uterine reconstruction. In this way， blood loss can be greatly reduced while the uterus could be， most likely，preserved， thereby avoiding hysterectomy and related adverse effects.