Premature growth charts have been created for babies born earlier than 37 weeks (which is considered preterm). While the infant is in the NICU or early post-discharge, their growth can be monitored by health professionals using a preterm growth chart, such as Fenton’s preterm growth chart (19). Once a preterm baby is discharged from the NICU, they can use the WHO growth charts, although their corrected age must be used to plot the data (6)