Nigeria, July 14 -- A preterm baby girl delivered at just 25 weeks of pregnancy and weighing 750g at birth has been discharged from Ibom Multi-Specialty Hospital after spending six months in the hospital's Neonatal Intensive Care Unit (NICU), a feat the hospital describes as the smallest baby it has successfully managed to discharge.

World Health Organisation (WHO) defines preterm birth as babies born alive before 37 completed weeks of gestation. The organisation classifies preterm births into three categories: extremely preterm (less than 28 weeks), very preterm (28 to less than 32 weeks), and moderate to late preterm (32 to less than 37 weeks).

Seven hundred and fifty grammes is roughly the weight of a standard loaf of bread.

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