Attention-deficit/hyperactivity disorder

For family education. This resource is not an individual diagnosis or treatment plan. Discuss concerns with an appropriately qualified professional.

What it means

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition involving persistent patterns of inattention and/or hyperactivity and impulsivity that interfere with functioning. Many preschoolers are active and distractible. Diagnosis requires a pattern beyond developmental expectations, across settings, and is not usually established from ordinary toddler behavior.

Causes and risk factors

ADHD has a strong genetic contribution and involves differences in brain development and functioning. Prematurity and some prenatal or environmental exposures may be relevant risk factors. Parenting style does not independently cause ADHD. Sleep, anxiety, language difficulties, and other conditions can resemble or accompany its symptoms.

Signs and everyday impact

Concerns include unusually persistent difficulty sustaining attention, following age-appropriate tasks, waiting, controlling impulses, or managing activity level. The pattern affects more than one setting, such as home and preschool, and causes meaningful difficulty. Symptoms are not explained simply by disliking one activity.

Assessment and diagnosis

Clinicians obtain a developmental and medical history, reports from caregivers and educators, and rating scales appropriate to age. There is no single laboratory test for ADHD. Assessment considers sleep, hearing, vision, learning, language, anxiety, autism, and other possible explanations. AAP guidance addresses evaluation from age 4; younger children with concerns still deserve support and specialist consideration.

Treatment and therapy

For preschool-aged children, evidence-based parent training in behavior management and behavioral classroom supports are first-line approaches. Medication may be considered by a qualified clinician when significant impairment continues despite appropriate behavioral treatment, with careful monitoring. Plans for older children may combine medication, behavioral strategies, and school supports. Goals and treatment decisions should be reviewed over time.

Support at home

Use clear, brief instructions, predictable routines, small achievable steps, and positive attention to useful efforts. Provide safe movement opportunities and coordinate with childcare. Address sleep and caregiver stress. These strategies support skills rather than imply that caregivers caused the condition.

When to seek help

Seek timely review for dangerous impulsive behavior, severe distress, or substantial disruption to eating or sleep. Immediate threats to safety require emergency support.

Questions for the care team

• How do the behaviors compare with expectations for this age?
• Have sleep and other developmental or health concerns been assessed?
• What parent training and preschool supports are available?

Terms in plain language

• Impulsivity: acting before pausing to consider.
• Impairment: meaningful interference with daily functioning.
• Parent training: coached strategies to support behavior and skills.

Podcast preparation

Use this resource to prepare a later episode: define the topic, discuss causes and signs, explain assessment, describe treatment and home supports, then close with urgent signs and a next step.

ADHD is not established merely because a child has lots of energy.

Verify current clinical guidance and obtain clinical review before public recording.

Sources

1. Diagnosing ADHD | Attention-Deficit / Hyperactivity Disorder (ADHD) | CDC - https://www.cdc.gov/adhd/diagnosis/index.html
2. Clinical Care of ADHD in Children | Attention-Deficit / Hyperactivity Disorder (ADHD) | CDC - https://cdc.gov/adhd/hcp/clinical-care/index.html
3. Treatment of ADHD | Attention-Deficit / Hyperactivity Disorder (ADHD) | CDC - https://www.cdc.gov/adhd/treatment/index.html

Sources accessed 3 October 2026.