At times preschoolers may have difficulty paying attention, following directions, and waiting or taking their turn. These behaviors can be common and age appropriate or they may indicate the need for an Attention-Deficit/Hyperactivity Disorder (ADHD) evaluation. As a parent, you might wonder whether your preschooler has ADHD or is just being rambunctious and acting typical for his or her age. This fact sheet will tell you more about ADHD in preschoolers and what to do if you are concerned about your child.