While he weighed less than 10 ounces at birth, this tiny baby now weighs 7 pounds and can go home with his family.
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He's not even a year old but already he's a record-breaker. This baby boy, who weighed 9.45 ounces when he was born in a Tokyo hospital, has the distinction of being the world's tiniest living baby boy, according to a report by Reuters.
"I wasn't sure he could survive," the baby's mom told Reuters.
In August, his mom gave birth to him via Caesarean-section. He had stopped developing and doctors worried that he would not live. After his birth, he stayed in the neonatal intensive care unit until Feb. 20. When he left the hospital, he weighed more than 7 pounds (3.2 kilograms).
"I am grateful that he has grown this big," his mom said to Reuters.
The University of Iowa's Tiniest Babies registry tracks record-holding little babies and noted that a German-born baby, weighing 9.66 ounces at birth in 2009, previously held the record of being the smallest surviving baby boy. The smallest surviving baby girl weighed 8.8 ounces when she was born in Germany in 2015.
