Limits RegistryPUBLIC RECORD
Limits RegistryNash Keen was born on 5 July 2024 at University of Iowa Health Care in Iowa City, USA, at exactly 21 weeks (147 days) of gestation — 133 days early — weighing 285 g. Guinness World Records recognised him in July 2025 as the most premature baby to survive, beating Curtis Means (21 weeks 1 day, born 2020 in Birmingham, Alabama).
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Nash Keen was born on 5 July 2024 at University of Iowa Health Care in Iowa City, USA, at exactly 21 weeks (147 days) of gestation — 133 days early — weighing 285 g. Guinness World Records recognised him in July 2025 as the most premature baby to survive, beating Curtis Means (21 weeks 1 day, born 2020 in Birmingham, Alabama).
The shortest gestational age at birth, measured from the first day of the mother's last menstrual period, of an infant who survived to hospital discharge, as verified by Guinness World Records.
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Limits Registry. LR-MOST-PREMATURE-BABY-TO-SURVIVE. Most premature baby to survive (shortest gestation at birth). 2026.