Research documenting late-diagnosed autistic women reveals a striking clinical reality: many receive formal diagnosis only in their 30s, 40s, or later—decades after their symptoms first appeared. This prolonged diagnostic delay represents a significant gap in gender-sensitive clinical practice and has profound implications for mental health and psychosocial outcomes.
Historical diagnostic bias has resulted in approximately 90 percent of male-typical autism presentations being recognised clinically, while only 35 percent of female-typical presentations received equivalent recognition. These disparities underscore how girls and women developed sophisticated social masking strategies that effectively concealed autism from clinical observation.
The accounts of late-diagnosed women now provide critical evidence for reforming diagnostic criteria and clinical training, highlighting the urgent need for gender-informed approaches to autism assessment across the lifespan.
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