Rare identical quadruplets born in Australia

• Naturally-conceived identical quadruplets are exceptionally rare, occurring when a single fertilised egg spontaneously divides multiple times—this case represents an extraordinary obstetric rarity with significant implications for prenatal monitoring and delivery planning.
• Multiple pregnancies of this complexity carry substantially elevated risks of complications including intrauterine growth restriction, preterm labour, and twin-to-twin transfusion syndrome, requiring intensive specialist antenatal and intrapartum care.
• Parents should receive early genetic counselling and detailed imaging surveillance in such cases, as monochorionic pregnancies demand careful risk stratification and delivery planning at appropriate tertiary centres with neonatal intensive care facilities.

The parents of the four naturally-conceived girls were taken by "immense surprise" with the pregnancy, the hospital said.

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