In recent years, the number of deliveries associated with assisted reproductive technology (ART) has increased worldwide. Among these, frozen embryo transfer (FET) has been reported as a risk factor for placenta accreta spectrum (PAS) [1–3]. Moreover, PAS associated with in vitro fertilization, including FET, tends to occur more frequently in non-previa placenta. Compared with PAS in placenta previa, these non-previa cases show significantly lower rates of antenatal diagnosis [1], suggesting per…