Introduction
PRIMARY HYPOTHYROIDISM
Oil-soluble contrast medium (OSCM) hysterosalpingography (HSG) improves pregnancy rates in women under 40 years of age (As OSCM HSG is becoming increasingly popular as a fertility-enhancing procedure, it is essential to establish its potential effects on neonatal thyroid function. Previous studies examining thyroid function in newborns conceived following an OSCM HSG had contradictory findings, with one showing an increased risk of primary hypothyroidism and the others showing no increased risk (