Can an adult have both FASD and ADHD, and what should they disclose in an assessment?

FASD and ADHD can occur together

Yes, an adult can have both FASD and ADHD. These are not mutually exclusive conditions, and an assessor should consider both if the history fits. ADHD symptoms such as inattention, impulsivity, restlessness, poor planning, and difficulty following through can also be seen in people with FASD, but the overall developmental pattern may be different.

That matters because an ADHD assessment is not just a checklist of current symptoms. Canadian guidance from CAMH and CADDRA describes adult ADHD assessment as a structured clinical process that looks at symptoms across the lifespan, impairment, childhood onset, and other explanations or co-occurring conditions. If FASD is in the picture, the clinician may need a broader developmental lens when deciding whether your presentation is consistent with ADHD, FASD, both, or something else that overlaps.

For some adults, the key issue is not proving one label over another. It is making sure the clinician understands how your brain has worked over time, what supports have and have not helped, and where daily functioning breaks down now. That is what leads to a useful care plan.

If anxiety, depression, substance use, or thoughts of self-harm are part of your situation, get help now by calling or texting 9-8-8 in Canada, or call 911 in an emergency.

Share developmental records if you have them

Old records can make a big difference, especially when FASD is a possibility. Adults often do not have clear memories of early childhood, so outside records can help the clinician see whether difficulties were present early, how they showed up, and whether there were signs of broader neurodevelopmental differences beyond ADHD alone.

• School report cards, learning plans, psychoeducational reports, or comments about attention, memory, impulsivity, social judgment, or adaptive functioning
• Paediatric, family doctor, speech-language, occupational therapy, or child development records
• Any prior assessment mentioning FASD, prenatal exposure concerns, developmental delay, intellectual disability, executive function problems, or learning disability
• A parent, caregiver, older sibling, or other adult who knew you well as a child and can describe early functioning

You do not need perfect paperwork to have an ADHD assessment. Bring what you can. Even partial records can help show whether the pattern started in childhood and whether problems affected more than one area, such as school, home, behaviour, social relationships, or independent living.

If you were identified with a learning issue at school, this can also be relevant. That topic is covered in What should I bring to an ADHD assessment if I was told I have a learning disability in school?.

Mention prenatal alcohol exposure if known or suspected

If there is any known or suspected alcohol exposure during pregnancy, say so directly. Prenatal alcohol exposure history is relevant because FASD is a neurodevelopmental disability linked to alcohol exposure before birth, and that history can change what the clinician asks next and what kind of follow-up assessment may be appropriate.

This can be hard to bring up. Some adults feel protective of a parent, unsure of the facts, or worried they will be judged. A good assessment should treat this as clinical information, not a moral issue. You can say, "I was told there may have been alcohol exposure in pregnancy," or "There is family history suggesting this, but I do not know how certain it is." That is still useful.

CanFASD describes diagnosis as multidisciplinary and rooted in a full history, including confirmed prenatal alcohol exposure when available, neurodevelopmental functioning, and the person’s day-to-day strengths and needs. An ADHD assessor may not diagnose FASD in a full multidisciplinary sense, but they do need to know if FASD is already diagnosed, suspected, or being explored.

If you are booking an ADHD assessment and want to know the general process first, What questions do they ask in an adult ADHD assessment? explains the usual interview areas.

Support needs should be part of the assessment

The clinician needs more than symptom names. Support needs shape treatment planning, especially when FASD and ADHD overlap. Two people can both meet ADHD criteria but need very different care depending on memory, judgment, sensory issues, independent living skills, money management, driving, parenting demands, sleep, substance use, and how well they can follow a routine.

This is where people are often too brief. Instead of saying only, "I have trouble focusing," describe what actually happens. For example, do you miss meals, forget appointments unless someone reminds you, agree to things you do not fully understand, lose housing paperwork, overspend impulsively, or struggle to remember verbal instructions unless they are written down? Those details help the clinician match recommendations to real life.

• What kinds of reminders, supervision, or structure you need to get through a normal week
• Whether you do better with written instructions, visual cues, repetition, or shorter steps
• Past reactions to treatment, including whether behavioural strategies were easier to use than self-directed plans
• Any safety concerns, such as driving problems, wandering, risky spending, substance use, or difficulty judging consequences
• Whether you need help with forms, benefits, school planning, work accommodations, or parenting tasks

Treatment planning may include education, environmental supports, therapy approaches, coaching, and other clinician-directed options depending on the assessment findings, the person’s goals, and applicable provincial rules. CADDRA and CAMH both emphasize that adult ADHD care should be individualized rather than based on symptoms alone.

Bring a clear summary to the appointment

A short written summary can help you say the important parts without forgetting them. This is especially useful if you have memory problems, feel overwhelmed in appointments, or have a scattered history across schools, foster placements, family members, or past providers.

1. Write a one-page timeline: childhood concerns, school problems, major assessments, work issues, and current daily struggles.
2. List any known diagnoses already given to you, including FASD, learning disability, anxiety, depression, trauma-related conditions, autism, or substance-use concerns.
3. Note any known or suspected prenatal alcohol exposure, even if the details are incomplete.
4. Bring names of people or services that knew you as a child, if records might be requested later.
5. State what help you are hoping for now: clearer diagnosis, work or school documentation, treatment options, coping strategies, or support planning.

This does not need to be polished. Point-form notes are enough. The goal is to help the clinician connect the history, not to make your case perfectly.

If you are still deciding whether to pursue assessment at all, How do I know if I have ADHD as an adult? may help you think through next steps. Province-specific service information is also available through /adhd-assessments-diagnosis-treatment-support/locations/.