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What is an Abnormal Baby Weight?

Published in Health 2 mins read

Determining a baby's weight as "abnormal" depends on several factors, including gestational age, sex, and overall health. While there are general guidelines for healthy weight ranges, a doctor will assess each baby individually.

Understanding Normal Baby Weight Ranges

  • Full-Term Babies (37-40 weeks): A full-term baby's weight typically falls between 5.5 lbs (2.5 kg) and 8.8 lbs (4 kg).
  • Premature Babies (less than 37 weeks): Premature babies are categorized by their gestational age, and weight is considered normal based on that age.
  • Large for Gestational Age (LGA): A baby is considered LGA if they weigh more than the 90th percentile for their gestational age.
  • Small for Gestational Age (SGA): A baby is considered SGA if they weigh less than the 10th percentile for their gestational age.

Factors Influencing Baby Weight

  • Genetics: Parents' weight and genetics can influence a baby's weight.
  • Maternal Health: A mother's overall health, including nutrition and any medical conditions, can play a role.
  • Lifestyle: A mother's habits during pregnancy, such as smoking or alcohol consumption, can affect the baby's weight.
  • Placental Function: The placenta provides nutrients and oxygen to the baby, and its function can impact weight.

What to Do If You Have Concerns

If you have concerns about your baby's weight, talk to your doctor. They can assess your baby's individual situation and provide guidance.

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