In Caesarean scar ectopic pregnancy the gestational sac implants within a previous caesarean scar in women with a history of caesarean delivery. 

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The incidence of Caesarean scar ectopic pregnancy is reported as 1 in 1800 to 1 in 2500 pregnancies, but it is predicted to increased given the global increase in caeasarean deliveries. 

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These ectopic pregnancies are associated with significant maternal and fetal morbidity. Unfortunately, the diagnosis and treatment remains challenging as there is a lack of high-quality evidence regarding what the best treatment option is.

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