LAUSR

BACKGROUND Anti-s is a rare alloantibody, and the reported cases of hemolytic disease of the fetus and newborn (HDFN) caused by anti-s are limited to non-Asian populations. METHODS Here, we report the case of a Chinese woman with a history of multiple pregnancies who developed an alloantibody with anti-s specificity. RESULTS Her newborn developed HDFN caused by anti-s but the clinical symptoms were not serious. After supportive treatment and bilirubin light phototherapy, the baby was discharged with a good prognosis. CONCLUSIONS This is the first reported case of anti-s-induced HDFN in a Chinese patient, highlighting the need for further research in the Asian population.