Can fetal macrosomia be prevented?

Fetal macrosomia is unpredictable. The diagnosis is made only after the baby has been weighed after delivery. Babies can be born larger than average with or without any of the known risk factors.

Promoting good health and a healthy pregnancy can improve the odds:

  • See a doctor for regular prenatal care. Frequent visits allow you and your doctor to closely follow your baby’s progress, and also give you a chance to ask questions. Your doctor will make up a schedule for you.
  • Watch your weight. Your weight before pregnancy matters, as does how much weight you put on while you are pregnant.
  • If you have diabetes, take appropriate steps to manage it. Diabetes before the pregnancy and diabetes that occurs during the pregnancy (gestational diabetes) are risk factors for fetal macrosomia. Gestational diabetes usually goes away after the baby is born, but women who have had it have a greater risk for diabetes later in life.

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