With the increasing of caesarean section rates, the rate of caesarean scar pregnancy tends to increase.

随着剖宫产率的增加，其发生率倾向于增加。

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Caesarean scar pregnancy is one of the rare ectopic pregnancy with unclear incidence, case history and mechanism.

剖宫产瘢痕妊娠是最罕见的异位妊娠之一，其发病率、病史和机制还不十分清楚。

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