How is ADHD diagnosed in children?

The examination for childhood attention deficit hyperactivity disorder (ADHD) mainly includes the following aspects: 1. Electroencephalogram (EEG) test: This assesses brain function by recording electrical activity in the brain. About 50% of children with ADHD show abnormal EEG results, primarily表现为 (manifested as) moderate abnormalities or epileptic activity. 2. Behavioral tests: Such as the finger-to-point test and finger-to-nose test, these evaluate a child's coordination and speed by observing their performance in specific tasks. Children with ADHD often display disconnected movements, clumsiness, or numerous errors during these tests. 3. Physical examination: Although children with ADHD typically show no obvious positive physical signs during examination, they may exhibit some mild neurological signs, such as large elbow swings or clumsy hand-flipping movements during the hand-flipping test. 4. Symptom assessment: Doctors conduct a comprehensive evaluation based on the child's behavioral presentation, academic performance, family environment, and other factors to determine whether ADHD is present.