The relationship between the neonatal eugenic quadruple test and jaundice is to identify the cause of jaundice by testing for cytomegalovirus infection, so that specialists can target treatment. The eugenics test includes toxoplasmosis, rubella, cytomegalovirus and herpes simplex virus. Of these, cytomegalovirus infection usually manifests itself in the form of jaundice. Cytomegalovirus infection causes persistent jaundice in newborns, so it is important to test for cytomegalovirus infection to identify the cause of the jaundice so that specialists can initiate targeted treatment. In addition, pathologic jaundice has a greater impact on the health of newborns. If you suspect that your child has jaundice, please bring your baby to the hospital in time for a clear diagnosis, treatment and management to avoid delays in the condition.