“…Moreover, a study from Turkey conducted in 28-center, reported that 456 gestational trophoblastic diseases were observed in 1,173,235 births (0.38 per 1000 births) and the mean age at diagnosis was 31years. 21,22 Maternal age, previous abortion, previous HM diagnosis, ethnicity, oral contraceptive usage, intrauterine vehicle, blood group, radiation, socioeconomic status, nutrition, infertility and genetic factors have been reported in several publications. All of these factors mainly focus on maternal age and history of HM.…”