The baby, named Rumaisa, weighed 244 grams (8.6 ounces) - less than a can of soft drink - when she was delivered by caesarean section on September 19 at Loyola University Medical Centre in Chicago. Rumaisa is 37 grams (1.3 ounces) smaller than the previous record holder, who was born at the same the hospital in 1989, according to a hospital spokeswoman, Sandra Martinez.
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The smallest possible baby that can survive is typically around 22 weeks gestation and weighs about 9 ounces. Babies born earlier or lighter than this face significant challenges and may not survive. The world record for the smallest surviving baby is held by Rumaisa Rahman, who was born at 25 weeks gestation and weighed 8.6 ounces.