Fetal Development: Baby's Size

Dr. Elizabeth Pryor answers the question, Is my baby growing too fast?

Question

Is there a difference between just having a big baby and a baby growing too fast?

Answer

It is rare that a baby grows "too fast" although if a patient has diabetes, we of course worry about the baby being too big.

The most important question is to find out what the percentile growth is on ultrasound. In other words, is the baby's growth greater than the 90th or 95th percentile?

When they measure a baby, they look at the circumference around the belly as well as the measurement of the head and leg. In situations where the baby is big because of diabetes, the measurement around the belly will be greater than the other measurements. The percentile I mentioned usually is automatically calculated with most ultrasounds.

The information on this Web site is designed for educational purposes only. It is not intended to be a substitute for informed medical advice or care. You should not use this information to diagnose or treat any health problems or illnesses without consulting your pediatrician or family doctor. Please consult a doctor with any questions or concerns you might have regarding your or your child's condition.

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