Choux C, et al. - The effect of severe ovarian hyperstimulation syndrome (OHSS) on beta-hCG kinetics and obstetrical and neonatal outcomes was studied in this research. Albeit early maternal serum beta-hCG kinetics were modified in women after severe OHSS, the outcomes of these pregnancies remained comparable to those of IVF pregnancies without OHSS. As indicated by this information, pregnancies after severe OHSS do not require specific care compared with IVF pregnancies, but differences in beta-hCG levels and kinetics ought to be considered when interpreting these outcomes.