Milestones/red flags May 24, 2017 12:48:14 GMT -8 via mobile Quote Select PostDeselect PostLink to PostBack to Top Post by Harmony on May 24, 2017 12:48:14 GMT -8 Milestones are the physical and behavioral skills seen in children as they develop. Red flags are signs to look out for in case more action is needed to aide a child's development.