Experts say outdated stereotypes, missed symptoms, and social conditioning continue to delay diagnosis for countless women.

For decades, Attention Deficit Hyperactivity Disorder (ADHD) has largely been viewed through the lens of hyperactive young boys struggling to sit still in classrooms. But growing awareness and research are revealing a different reality: thousands of women are living with ADHD for years—sometimes decades—before receiving an accurate diagnosis.

Experts say this delay stems from longstanding misconceptions about how ADHD presents, particularly in women and girls, whose experiences often differ from the traditional image associated with the condition.

Research indicates that women with ADHD are diagnosed, on average, five years later than men. Many are initially misdiagnosed with anxiety, depression, or other mental health conditions, while some never receive a diagnosis at all.

Speaking on a recent Medical News Today podcast, Prof. Davida Hartman, a Chartered Educational and Child Psychologist with the Psychological Society of Ireland and a specialist in ADHD and autism, explained that historical biases in research and medicine have contributed significantly to the problem.

According to Hartman, many diagnostic frameworks were developed based on studies involving young boys, creating a narrow understanding of what ADHD looks like.

"Professionals were often looking for the stereotypical hyperactive child who couldn't stay seated in class," she explained. "Many girls and women simply didn't fit that picture, so ADHD was not even considered."

The result has been generations of women whose struggles with attention, organization, impulsivity, and mental overload were overlooked or misunderstood.

Maria Cohut, Features Editor at Medical News Today and one of the podcast hosts, shared her own experience of receiving an ADHD diagnosis as an adult. Looking back, she recalls being a quiet, high-achieving student who never matched the stereotypical image of ADHD.

"I didn't fit the template," she said. "People weren't necessarily aware of the hyperactivity that was going on inside my brain."

Like many women, Cohut learned early how to mask her difficulties. She described performing focus in the classroom, concealing daydreaming and concentration challenges to avoid being labeled a poor student.

Experts say this phenomenon, known as "masking," is one of the key reasons ADHD often goes unnoticed in women. Individuals consciously or unconsciously suppress behaviors that might be viewed as socially unacceptable, making their struggles less visible to parents, teachers, and healthcare professionals.

Hartman noted that societal expectations frequently place additional pressure on girls and women to appear organized, attentive, and emotionally regulated. Over time, many become highly skilled at hiding their difficulties, even while experiencing significant internal stress.

"There is emerging evidence that masking can have serious impacts on mental health," Hartman said. "People may spend so much energy trying to appear a certain way that they lose sight of their authentic selves."

The psychologist also challenged the idea that ADHD necessarily presents differently in men and women. Instead, she argues that the condition can manifest in a wide variety of ways across individuals, influenced by personality, culture, environment, and life experiences.

"ADHD doesn't exist in just one form," she explained. "The challenge is that we've historically expected it to look a certain way, and when it doesn't, people are missed."

Another factor contributing to delayed diagnoses is what Hartman describes as a broader tendency within healthcare systems to dismiss or minimize women's experiences. Symptoms are often attributed to stress, anxiety, hormonal changes, or other issues before ADHD is considered.

However, the landscape is beginning to change.

The rise of social media and online communities has enabled more women to share their experiences openly, helping others recognize patterns in their own lives. Increased public awareness and growing research into neurodiversity are also encouraging more women to seek assessments and advocate for themselves.

Hartman believes this growing visibility is helping to challenge outdated stereotypes and improve recognition of ADHD across all age groups.

While awareness is increasing, experts stress that significant work remains to ensure women receive timely and accurate diagnoses. Better education for healthcare professionals, more inclusive research, and broader public understanding of neurodiversity will be essential to closing the gender gap in ADHD identification.

As conversations around neurodiversity continue to evolve, specialists hope that fewer women will have to wait years—or even decades—to understand the reasons behind their lifelong struggles and strengths.