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Small baby
At birth, most babies weigh 6 to 8 pounds. Low birth weight refers to infants who weigh less than 5.5 pounds at birth. Most normal babies weigh 5.5 pounds by 37 weeks of gestation. Intrauterine growth restriction refers to delayed growth within the uterus, which then leads to low birth weight. Some babies are just small and happen to weigh less than 5.5 pounds at birth, just like some adults are smaller than others. Though this is considered low birth weight, in these cases, it is not abnormal or a cause for concern.
Dr. Robert Kwok reviewed this
35 year experience in Pediatrics
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