Second baby syndrome refers to changes in a second child’s personality or disposition based on how a mother or father’s parenting style changes between the first and second child. This change in parenting style often emerges because the parent now has more experience and perhaps the ‘firsts’ are less exciting this time. In some cases, this can result in jealousy or trouble-seeking behavior. While this theory often focuses on the potential negative outcomes of this shift in parenting, it’s important to remember that there can also be positive outcomes as well. Your second child may be calmer, more independent, and more flexible as a result. Remember, none of these things are set in stone and it’s certainly not a given that your second child will have behavioral issues.