Bridging the Gender Diagnostic Gap in Autism Tool Sensitivity and Assessment Redesign

Autism diagnosis has long been shaped by tools and criteria developed primarily around male presentations. This has created a significant gender diagnostic gap, where girls with autism often remain undiagnosed or misdiagnosed until much later in life. Research published in JAMA Network Open in 2025 sheds light on why this happens: the diagnostic tools currently in use are less sensitive to the female presentation of autism. Girls frequently need to show more obvious social or communication difficulties to meet the same diagnostic threshold as boys. This means many girls who mask their challenges well go unnoticed until adolescence or adulthood. Addressing this gap requires a fundamental redesign of assessment protocols to better capture the female autism phenotype.

Diagnostic tools and materials laid out for autism assessment

Understanding the Gender Diagnostic Gap in Autism

Autism spectrum disorder (ASD) affects individuals across all genders, but the way it presents can differ significantly between boys and girls. Historically, diagnostic criteria and screening tools were developed based on predominantly male samples. This has led to a system that is less effective at identifying autism in girls.

Girls with autism often display subtler symptoms or develop coping strategies that mask their difficulties. For example, they might mimic social behaviors or use learned scripts to navigate social situations. These behaviors can make their autism less visible to clinicians using traditional tools. As a result, girls often receive diagnoses later than boys, sometimes not until adolescence or adulthood when social demands increase.

The 2025 JAMA Network Open study confirms that this diagnostic gap is not just anecdotal but rooted in the sensitivity of the tools themselves. Girls need to exhibit more pronounced social or communication challenges to meet diagnostic criteria, which means many remain undiagnosed or misdiagnosed for years.

Why Current Diagnostic Tools Fall Short for Girls

Most autism screening tools focus on behaviors and traits that are more common or more easily observed in boys. These include:

• Repetitive behaviors and restricted interests that are overt and easily recognizable

• Clear social communication deficits

• Observable sensory sensitivities

  
  

Girls, on the other hand, may show:

• Interests that align more closely with socially accepted activities, making them less noticeable

• Social challenges that are more internalized or subtle, such as difficulty maintaining friendships rather than avoiding social interaction altogether

• Higher levels of masking or camouflaging behaviors to fit in with peers

  
  

Because the tools rely on observable behaviors, girls who mask well or whose symptoms do not fit the typical male pattern often fall below the diagnostic threshold. This leads to underdiagnosis and delays in support.

The Impact of Late Diagnosis on Girls and Women

Late diagnosis has real consequences. Without early identification and support, girls with autism may struggle with:

• Increased anxiety and depression due to social isolation or misunderstanding

• Difficulties in school or work environments without appropriate accommodations

• Challenges in forming and maintaining relationships

• Lower self-esteem and identity confusion

  
  

Early diagnosis allows for tailored interventions that can improve social skills, communication, and emotional regulation. It also helps families and educators understand and support the individual’s needs.

Redesigning Assessment Protocols for Female Autism Phenotype

To close the gender diagnostic gap, assessment protocols must evolve. This involves:

1. Developing Gender-Sensitive Screening Tools

New tools should be designed with input from females on the spectrum to capture the full range of female autism traits. These tools need to:

• Include questions about masking and camouflaging behaviors

• Recognize social difficulties that are less overt but still impactful

• Account for interests and behaviors that may not fit traditional autism stereotypes

  
  

2. Training Clinicians on Gender Differences in Autism

Clinicians need education on how autism presents differently in girls and women. This training should cover:

• Recognizing subtle social communication challenges

• Understanding the impact of masking and its signs

• Avoiding bias that may lead to dismissing symptoms as anxiety or other conditions

  
  

3. Using Multi-Source Information for Diagnosis

Assessment should gather information from multiple sources, including:

• Self-reports from girls and women about their experiences

• Observations from parents, teachers, and peers

• Clinical observations in different settings

  
  

This comprehensive approach helps capture a more accurate picture of the individual’s challenges.

4. Incorporating Developmental and Contextual Factors

Assessment tools should consider how social demands change with age and context. For example, social challenges may become more apparent in adolescence when peer relationships grow more complex.

Examples of Improved Assessment Approaches

Some recent initiatives show promise in addressing the gender gap:

• The Camouflaging Autistic Traits Questionnaire (CAT-Q) helps identify masking behaviors common in females.

• Modified versions of the Autism Diagnostic Observation Schedule (ADOS) include modules that better capture female social communication styles.

• Research clinics are piloting interviews that focus on internal experiences rather than just observable behaviors.

  
  

These approaches provide a more nuanced understanding of autism in girls and women.

Moving Forward: What Families and Educators Can Do

While the diagnostic system catches up, families and educators can support girls who may be overlooked by current tools:

• Pay attention to subtle social difficulties, such as exhaustion after socializing or difficulty maintaining friendships.

• Encourage open conversations about feelings and social experiences.

• Advocate for comprehensive assessments if autism is suspected, even if traditional tools do not indicate it clearly.

• Support girls in developing coping strategies that do not rely solely on masking, which can be exhausting.