A large population study has found that adults diagnosed with attention-deficit/hyperactivity disorder are markedly more likely to visit emergency departments and to experience violence, both as victims and, less commonly, as perpetrators, compared with adults without the condition. The findings add to a growing body of evidence that ADHD’s impact extends well beyond attention and focus.

What the Research Found

Researchers analyzed health and justice-system records covering a large regional adult population, comparing outcomes for people with a formal ADHD diagnosis to matched adults without one. Adults with ADHD showed substantially elevated rates of emergency department visits, including for injuries, self-harm, and substance-related events, along with higher rates of being a victim of violence. A smaller but still elevated increase in perpetration of violence was also observed, an association researchers linked to impulsivity, emotional dysregulation, and higher rates of co-occurring conditions such as substance use disorders, rather than to ADHD symptoms alone.

Why It Matters

ADHD in adults is frequently framed narrowly around workplace or academic difficulties, but this research points to broader safety and health-system implications that are often under-recognized by both patients and clinicians. Emergency departments and community safety services may be encountering the downstream effects of unmanaged ADHD without identifying the underlying condition, meaning affected adults may cycle through crisis care without ever receiving an evaluation or ongoing treatment plan.

What This Research Does Not Prove

This is an observational, population-level study, and it cannot establish that ADHD directly causes violence or emergency visits. Co-occurring conditions, including substance use disorders, mood disorders, and socioeconomic stressors, are common in adults with ADHD and likely account for a substantial share of the elevated risk. The large majority of adults with ADHD are never involved in violence, and the increased perpetration risk, while statistically significant, remained a small absolute proportion of the group studied.

When to Seek Help

Adults who notice a pattern of impulsive decisions, frequent accidents or injuries, escalating conflict in relationships, or repeated emergency room visits, particularly alongside long-standing attention or organizational difficulties, may benefit from an ADHD evaluation. This is especially relevant for adults who were never diagnosed in childhood but recognize lifelong patterns in hindsight.

How to Talk to Your Doctor

It helps to describe concrete patterns rather than general struggles: specific incidents of impulsive risk-taking, frequency of emergency visits or injuries, difficulty managing anger or conflict, and any history of substance use. Bringing examples from both work and personal life gives a clearer picture than describing “trouble focusing” alone.

Which Professional to See

A psychiatrist or primary care physician can conduct or refer for an ADHD evaluation and manage medication if appropriate. A psychologist or therapist trained in ADHD can help build skills around impulse control and emotional regulation, and an addiction specialist should be involved if substance use is also present.

Questions to Ask

Consider asking: Could my history of impulsive incidents or emergency visits be connected to undiagnosed ADHD? What treatment options, including therapy and medication, are available, and how do they address impulsivity specifically? Should I also be screened for substance use or mood conditions that often occur alongside ADHD?

Bottom Line

Adults with ADHD face meaningfully higher rates of emergency care use and violence exposure, largely driven by impulsivity and co-occurring conditions rather than the core attention symptoms alone. Recognizing and treating ADHD in adulthood may reduce these downstream risks, making evaluation worthwhile for adults with a pattern of crisis-level incidents.

Related Topics

Related reading: ADHD