A government review in the United Kingdom has expressed concern regarding potential over-diagnosis or misdiagnosis of attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder, particularly in younger children. The review suggests a shift in societal trends from historically under-diagnosing these conditions towards a potential increase in incorrect diagnoses. It specifically highlights risks within younger age groups, implying these populations may be more susceptible to inaccurate assessments. This warning suggests a need for increased caution in diagnosing ADHD and autism in younger individuals, prompting further examination of diagnostic practices. It underscores the importance of accurate identification to ensure appropriate support and treatment. Further details regarding specific diagnostic criteria or recommendations were not provided in this initial report, but the review sets the stage for potentially significant changes in the approach to these neurodevelopmental conditions in the United Kingdom.