Gender Differences in ADHD

ADHD does not look the same in everyone

For decades, ADHD research and clinical practice were based primarily on studies of boys. The stereotypical image of ADHD - the disruptive child who cannot sit still in class - reflects only one presentation of the condition, and it is the one most commonly seen in males.

The consequences of this diagnostic gap are serious. Women and girls with unrecognised ADHD are more likely to develop anxiety, depression, and eating disorders. They are more likely to be misdiagnosed with other conditions. And they often spend years - sometimes decades - believing that their struggles are personal failings rather than the result of a neurodevelopmental condition.

How ADHD presents in boys and men

Boys with ADHD are more likely to display externalising behaviours - the visible, disruptive symptoms that draw attention in classrooms and clinical settings:¹

• Physical hyperactivity: difficulty sitting still, climbing, running, constant movement
• Impulsivity: calling out in class, interrupting others, acting without thinking
• Defiance and behavioural challenges that lead to school referrals
• Aggressive or disruptive behaviour that prompts adults to seek assessment

These behaviours are hard to miss. They cause problems for teachers and parents, and that visibility leads to earlier identification and referral. Boys are more likely to be referred for assessment on the basis of teacher and parent observations.²

How ADHD presents in girls and women

Girls with ADHD are more likely to display internalising symptoms - difficulties that are quieter, less visible, and easier to overlook:¹

• Inattention: difficulty concentrating, daydreaming, losing track of conversations
• Disorganisation: struggling with planning, time management, and keeping track of belongings
• Emotional sensitivity: intense reactions to criticism, rejection, or perceived failure
• Anxiety: worry about making mistakes, not keeping up, or being “found out”
• People-pleasing: working extremely hard to meet expectations and avoid negative attention
• Internal restlessness: mental hyperactivity rather than physical hyperactivity

Girls with ADHD often develop sophisticated coping strategies. They may work twice as hard as their peers to produce the same results. They may mask their difficulties behind a facade of competence, agreeableness, or perfectionism. These compensatory behaviours can be effective in the short term, but they come at a significant cost.

Why girls and women are missed

The referral bias

The pathway to ADHD diagnosis usually begins with a referral - from a teacher, a parent, or a GP. Research consistently shows that referrals are more likely to be triggered by externalising behaviours, which are more common in boys. Girls who are struggling but not disruptive are less likely to be flagged.³

Teachers and parents may unwittingly contribute to this gap. Screening tools and behavioural checklists were originally designed to identify disruptive behaviours, and even when girls endorse ADHD symptoms themselves, adults around them may not recognise the pattern.³

Diagnostic overshadowing

When women and girls do seek help, their ADHD symptoms are often attributed to other conditions. The Welsh national study found that females were more likely to receive a diagnosis of anxiety, depression, or another mental health condition - and to be prescribed antidepressants - before their ADHD was identified.²

This pattern - where one diagnosis overshadows another - is called diagnostic overshadowing. It is one of the main reasons women receive ADHD diagnoses later in life, if at all.

The masking effect

Many women with ADHD develop what researchers call “compensatory strategies” - ways of hiding or managing their difficulties. These strategies can include: obsessive list-making, over-preparation, relying heavily on routines, avoiding situations where difficulties might be exposed, and working much harder than others to achieve the same results.⁴

This masking is often unconscious. Women may not realise they are doing it until the compensatory strategies break down - often at points of increased demand, such as starting university, beginning a new job, becoming a parent, or reaching perimenopause.

Hormonal factors

ADHD symptoms can fluctuate across the menstrual cycle, during pregnancy, and through perimenopause and menopause. Oestrogen appears to affect dopamine function, and hormonal changes can intensify ADHD symptoms or reduce the effectiveness of medication.⁵ This is an area where research is still developing, but many women report significant changes in their ADHD symptoms at hormonal transition points.

The cost of late or missed diagnosis

The impact of unrecognised ADHD in women is not just academic. It has real consequences for mental health, relationships, and quality of life:

• Self-blame: years of struggling without understanding why can lead to deep shame and self-criticism
• Mental health difficulties: women with ADHD have higher rates of anxiety, depression, eating disorders, and self-harm than women without ADHD6
• Relationship difficulties: emotional dysregulation, rejection sensitivity, and difficulty with organisation can strain partnerships and friendships
• Professional underachievement: despite often being highly capable, women with unrecognised ADHD may consistently perform below their potential
• Burnout: the energy required to compensate and mask can lead to burnout that is often misunderstood

What needs to change

Better awareness among clinicians

GPs, mental health professionals, and teachers need better training in how ADHD presents across genders. The ADHD Taskforce recommended improved GP training and recognition that ADHD is common, treatable, and frequently missed in women and girls.⁶

Gender-sensitive diagnostic criteria

Current diagnostic criteria were developed primarily from research on boys. Future revisions should ensure that criteria reflect the full range of ADHD presentations across genders.³

Earlier identification in girls

Schools and healthcare services need to look beyond disruptive behaviour when considering ADHD. The quiet girl who is daydreaming, losing things, and struggling to start tasks may need assessment just as much as the boy who cannot sit still.

Support for women diagnosed in adulthood

For women who receive a diagnosis later in life, the process does not end with diagnosis. Many need support to process years of misunderstanding, to grieve for what was lost, and to build new strategies for managing their ADHD. This is explored further in our guide to late diagnosis.

Getting support

If you think you may have ADHD

• Speak to your GP about a referral for assessment - you do not need to have been “the disruptive child” in school
• Consider completing the ASRS screening questionnaire to bring to your appointment
• In England, you have the legal Right to Choose your assessment provider
• Use our Local Services directory to find ADHD services near you

neurobetter resources

• ADHD - understanding ADHD as a whole
• Getting assessed - what to expect from the assessment process
• Late diagnosis - discovering ADHD in adulthood
• Masking - the hidden cost of compensating
• Emotional dysregulation - managing intense emotions
• Our online community - connect with others who understand
• Ask a Counsellor - private, confidential guidance