Delayed growth is poor or abnormally slow height or weight gains in a child younger than age 5. This may just be normal, and the child may outgrow it.

Growth hormone deficiency means the pituitary gland does not make enough growth hormone.

Failure to thrive refers to children whose current weight or rate of weight gain is much lower than that of other children of similar age and sex.

Gigantism is abnormal growth due to an excess of growth hormone (GH) during childhood.

Developmental disabilities are conditions that are usually present at birth. They can affect a child’s growth and development.

Developmental reading disorder (DRD) is a reading disability that occurs when the brain does not properly recognize and process certain symbols.

Developmental coordination disorder is a childhood disorder. It leads to poor coordination and clumsiness.

Language disorders in children are problems with the development of language skills.

Neurodevelopmental Disorders

Attention-deficit/hyperactivity disorder, also called ADHD, is a long-term condition that affects millions of children.

Autism

Autism spectrum disorder (ASD) is a neurological and developmental disorder that begins early in childhood and lasts throughout a person’s life.

Autism spectrum disorder (ASD) is a developmental disability caused by differences in a person’s brain.