Regarding the cause of jaundice in the patient group, twenty-nine neonates (72.5%) had ABO incompatibility, nine neonates (22.5%) had RH incompatibility, and two neonates (5%) had glucose 6-phosphate dehydrogenase deficiency (G6PD). Here, G6PD is linked to hyperinsulinemic hypoglycemia, familial, 4.