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Home > Health Library > Physical Development, Ages 1 to 12 Months
Babies grow rapidly during the first year of life. Weight, length, and head circumference measurements are plotted on growth charts to monitor your baby's growth over time. Most babies:
The soft spots, or fontanelles, on top of a baby's skull begin to close at 6 months but won't completely grow together until sometime between the 9th and 18th month.
When your baby is about 6 months old, teething may begin. Teeth may not yet break through the gums at this age, but your baby may drool, chew on objects or hands, and act fussy from the pressure of new teeth coming in.
It is important to keep in mind that each baby is different, and growth patterns can change between routine well-child checkups. If you have concerns, talk to your doctor about the many things that can affect your baby's growth. Physical growth requires adequate nutrients and a nurturing environment.
Current as of:
August 22, 2019
Author: Healthwise StaffMedical Review: John Pope MD - PediatricsKathleen Romito MD - Family MedicineLouis Pellegrino MD - Developmental Pediatrics
Current as of: August 22, 2019
Author: Healthwise Staff
Medical Review:John Pope MD - Pediatrics & Kathleen Romito MD - Family Medicine & Louis Pellegrino MD - Developmental Pediatrics
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