UK Risks Harming Children Through Over-Diagnosis of ADHD and Autism, Review Warns

Britain may be harming a generation of children through the over-diagnosis of Attention Deficit Hyperactivity Disorder (ADHD) and autism, according to a significant review.

The report indicates that parents are being incentivized to seek diagnoses for their children due to a combination of misguided school policies and welfare systems that reward such labels. Additionally, social media trends have influenced young people, leading them to misinterpret common behavioral traits as indicators of these conditions.

Concerns have been raised that children might be defined by these diagnoses, potentially steering them toward a life of dependency on benefits and unemployment. While autism diagnosis rates have seen a dramatic increase, with some rising as much as 40-fold, the review found no concrete evidence that the actual number of autistic children has similarly escalated.

Professor Peter Fonagy, a clinical psychologist involved in the review, expressed apprehension regarding the 'consistency and quality' of ADHD and autism assessments, particularly those conducted by a growing number of private providers. These private firms now handle over half of NHS-funded ADHD assessments and a third of autism assessments. However, they are poorly regulated and permitted to advertise directly to the public, often leaving the NHS to cover the associated costs.

Past surveys of general practitioners have suggested that private providers rarely reject a diagnosis request. Fonagy highlighted that misdiagnosis and overdiagnosis can be detrimental, potentially leading to inappropriate treatments, delaying support for other underlying issues, and lowering expectations for children's achievements.

According to the report, children diagnosed with ADHD before the age of 17 are approximately four times less likely to be engaged in education, employment, or training in early adulthood. Each such individual can represent a lifetime cost of £244,000 to taxpayers.

Helen Whately, a Conservative work and pensions spokesperson, stated that individuals are too often defined by their diagnosis rather than their potential. She observed a trend where children are told something is 'wrong' with them, subsequently placed on disability living allowance and then personal independence payments, with their focus shifting to what they cannot do. Whately noted a doubling of sickness benefit claims since 2019, suggesting the country is not twice as sick, and that while many conditions are real, they should not preclude work.

Professor Sir Simon Wessely, vice-chairman of the review, cautioned that a diagnosis could inadvertently 'close doors' and define individuals by their difficulties rather than their strengths and potential.

Fonagy concluded that the current model of care is failing patients and requires substantial reform. He pointed out that children with severe mental health issues face unacceptably long waiting times for care, as the system is overwhelmed by the escalating demand for ADHD and autism assessments.

The review advocates for a shift from a 'diagnosis-dependent' system to one centered on individual needs, enabling children to receive practical help and support at school while assessments are ongoing. It also suggests that private providers should be regulated by the Care Quality Commission (CQC) and prohibited from direct public advertising.

The review asserts that the rise in autism and ADHD diagnoses cannot be attributed solely to previously overlooked children coming forward. It warns that if current trends persist, the balance of risks is shifting from under-recognition and underdiagnosis towards an increased risk of misdiagnosis and overdiagnosis, which are becoming critical considerations for policy and service delivery.

Reported autism prevalence among six- to 11-year-olds has increased more than 20-fold, from 0.24 percent in 2000 to 4.58 percent in 2025. For 12- to 17-year-olds, the rise has been over 40-fold, from 0.10 percent to 4.06 percent. However, the most reliable estimate for the prevalence of autism in young people remains around 1.2 percent.

The review suggests that the increase in autism diagnoses is likely due to changes in recognition, recording, diagnostic criteria, help-seeking behaviors, and access to services, rather than a true increase in the underlying population prevalence. Monthly referrals for ADHD assessments have more than tripled since 2019, and by the end of 2025, open referrals exceeded 560,000.

Since there is no biological test for ADHD or autism, diagnoses are based on assessments of difficulties, developmental history, and functional impairment.

Professor Fonagy suggested that young people today face immense pressure, exacerbated by the constant influx of information from digital sources, making self-understanding more challenging than in previous generations. He stated, 'Young people... are not fragile. They are outnumbered.'

Health Secretary Yvette Cooper has pledged to enhance oversight of mental health services, committing to make all ADHD and autism diagnostic assessments CQC-regulated to ensure quality and prevent overcharging by private providers.