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Mental illness in children: Know the signs

Common disorders among children

Mental health disorders in children may include the following:

  • Anxiety disorders. Anxiety disorders in children are outsized fears or worries that are hard to control. These worries disrupt children's being able to take part in play, school or social activities. Diagnoses include social anxiety, generalized anxiety and obsessive-compulsive disorders.
  • Attention-deficit/hyperactivity disorder (ADHD). Compared with most children of the same age, children with ADHD have trouble with paying attention, acting on impulse, being too active, called hyperactivity, or some mix of these problems.
  • Autism spectrum disorder (ASD). Autism spectrum disorder is a neurological condition that appears in early childhood, often before age 3. How severe ASD is varies. But children with this disorder have trouble talking with and connecting with others.
  • Eating disorders. Eating disorders are defined as an unhealthy focus on an ideal body type, disordered thinking about weight and weight loss, and unsafe eating and dieting habits. Eating disorders such as anorexia nervosa, bulimia nervosa and binge-eating disorder can result in not being able to act emotionally and socially. And they can cause life-threatening physical complications.
  • Depression and other mood disorders. Depression is lasting feelings of sadness, low or irritable mood, and loss of interest in typical activities. These get in the way of a child being able to do well in school and interact with others. Bipolar disorder results in big mood swings between depression and extreme emotional or behavioral highs. These highs can cause risky or unsafe actions.
  • Post-traumatic stress disorder (PTSD). PTSD is long-term emotional upset, worry, scary memories, nightmares and acting out. This is in response to violence, abuse, injury or other traumas a child has had or come into contact with.
  • Schizophrenia. Schizophrenia is a disorder in perceptions and thoughts. Schizophrenia causes a person to lose touch with reality, called psychosis. It most often starts in the late teens through the 20s. Schizophrenia can cause a person to see or hear things that aren't there, called hallucinations. It also can cause odd thoughts and behaviors.