Clinics use growth charts to map a baby's growth up to 5 years. In South Africa, you would've received the Road to Health booklet or card with your baby's birth weight and length plotted on the graph.

Here's how growth charts work: Doctors plot the baby's measurements on the chart to get a percentile. The percentile shows how the baby is growing compared to other babies of the same age and gender.

The current standards for infant growth were published back in 1977 and based on a limited survey of babies born in Yellow Springs, Ohio, between the 1920s and mid-1970s.

Parents may be given a chart by their pediatrician showing their baby's growth curve, but sometimes this information can be confusing.

Ever looked at your baby and thought they must have grown overnight? They actually may have! Learn more about baby growth spurts during the first year, including when they are likely to happen ...

A baby’s growth should roughly follow the same curve on the chart over time. Girls’ weight-for-age percentiles from birth to two years. World Health Organisation Child Growth Standards ...