When will my baby smile?

It is common for newborns to have periods of sleep or inactivity in which they do not smile, and some babies may smile infrequently during the first few months. However, if your baby is not smiling at all or is not responding to familiar faces or toys, you may want to talk to your pediatrician. Delayed social development or lack of smiling can be a sign of a more serious underlying issue, such as a hearing or developmental problem, so it is important to address it early on. A pediatrician can assess your baby and offer guidance on next steps, which may include further testing or early intervention services.