On Friday, Texas woman Janet Johnson gave birth to a 2-foot, 16-pound baby boy, more than double the average weight of a newborn.
The baby, JaMichael Brown, was the heaviest baby to be born at Good Shepherd Hospital in Longview, Texas. The hospital staff has nicknamed the baby Moose.
Johnson and her fiance, Michael Brown, knew they were expecting a big baby.
When they pulled the baby out, they could tell that he was huge, Johnson told CBS affiliate KYTX-TV. And then they weighed him.
JaMichael surprised Dr. John Kirk, who is Johnson's obstetrician. He was much larger than expected, Dr. Kirk told ABC News. Both his mother and father are large people, and she was diagnosed with gestational diabetes, which contributed to the baby's size.
Doctors placed the baby in the Neonatal Intensive Care Unit, where he was getting fed through a feeding tube, and receiving breathing assistance.
Babies this large often face health dangers that other newborns don't. While infants of diabetic mothers are large in size, their organ function is not more developed, Dr. Maneul Porto, a professor and chairman of obstetrics and gynecology at University of California at Irvine, told ABC News. In fact, their lung development may be delayed.
JaMichael is not breathing on his own yet, but Dr. Kirk expects that baby and mother be released from the hospital within two or three days. He's really only had some minor problems, Dr. Kirk told ABC News. We have made them aware of the possible complications down the road, but hopefully, they'll continue to be under medical care and we'll keep an eye on them.
Johnson said she is optimistic about her fourth child.
According to the Guiness Book of World Records, the biggest newborn baby ever was born to Anna Bates of Canada in 1879, who weighed 23 pounds, 12 ounces.