ADHD is an attention deficit hyperactivity disorder that occurs very often in preschool children. It is a disorder characterized by hyperactivity, attention deficit and impulsivity. This disorder is diagnosed more often in boys than in girls. Due to their symptoms, these children can be easily noticed in society, however, the diagnosis can be made around seven years, when the child starts school. Children with ADHD are often isolated by their peers because they do not understand their behavior or their symptoms. These children disturb other children in the game, they are restless, constantly moving and behaving inappropriately. Due to such behaviors, they are removed from society and children become lonely and may develop other disorders. In order to avoid isolating the child from society, it is necessary to make a correct diagnosis. A multidisciplinary team is responsible for this with the help of people from the child's daily life, parents and teachers. Once the diagnosis is made, we can think about the proper therapy that would improve the child's symptoms. In order for therapy to be successful, it is first necessary for parents and educators to be sufficiently educated about the disorder itself and the approach to that child. With proper treatment and an environment full of understanding and support, the symptoms will certainly reduce their intensity and allow the child to function normally. If the symptoms are brought under control, the child will be able to live a successful life full of success and opportunities, society will accept him.