At What Age Are Girls Most Often Diagnosed with ADHD Compared to Boys? 

The age of ADHD diagnosis in girls vs boys differs significantly, with girls typically receiving a diagnosis much later than boys. Research shows that while boys are often diagnosed around the age of 7, girls are typically diagnosed much later, with some studies suggesting an average childhood diagnosis age of 12 for girls. 

Why the Delay in Diagnosis for Girls? 

Several factors contribute to the delayed diagnosis of ADHD in girls: 

Sex differences in symptom presentation 

Girls often display more inattentive symptoms, such as daydreaming or difficulty staying focused, rather than the hyperactivity and impulsivity commonly seen in boys. This subtle presentation is often overlooked by parents and teachers, leading to a delayed diagnosis. 

Social expectations 

There are societal expectations that girls should be quiet, organised, and well-behaved. These norms can cause girls to mask their symptoms, making it harder to detect ADHD in early childhood. 

Misdiagnosis 

Girls with ADHD are more likely to be misdiagnosed with conditions such as anxiety or depression, which can delay an accurate diagnosis and treatment. 

The Importance of Early Diagnosis 

An early childhood diagnosis age is crucial for effective ADHD management. Delayed diagnosis in girls can lead to difficulties in academics, social relationships, and self-esteem. Identifying ADHD early enables the implementation of effective strategies and support. 

Visit providers like ADHD Certify for personal consultations and tailored guidance on diagnosis and treatment. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Late diagnosis and gender differences.