Experts Warn of 'Wild West' Private Clinics Fueling ADHD and Autism Diagnosis Surge

Leading experts have warned that the dramatic increase in Attention Deficit Hyperactivity Disorder (ADHD) and autism diagnoses in Britain is partly driven by the marketing strategies of private clinics. These clinics, described as operating in a "wild west" environment, are accused of exploiting vulnerable adults seeking self-understanding and identity, potentially leading to incorrect diagnoses delivered by less qualified staff.

In a piece published in the British Medical Journal, autism pioneer Professor Dame Uta Frith and clinical psychologist Dr. Naomi Fisher called for stricter regulation of private providers and clearer diagnostic criteria, noting that current requirements are "elastic." They argue that changes in the formal and informal understanding of autism and ADHD have made them "ripe for exploitation by providers who see ADHD and autism assessments as a business opportunity."

"Convincing more people that they could be autistic or have ADHD is a marketing strategy to increase their customer base," Frith and Fisher wrote. "Giving more people the diagnosis makes business sense because a dissatisfied customer who does not receive the diagnosis they hoped for may leave poor reviews or complain."

These assertions follow a recent report that suggested Britain risked harming a generation of children by overdiagnosing these conditions, potentially impacting their future employment and reliance on benefits. Diagnoses of ADHD have reportedly risen 20-fold since the turn of the century in England, while autism cases increased by 787 percent in the UK between 1998 and 2018.

The report, led by Professor Peter Fonagy, also raised concerns about the consistency and quality of private assessments for these conditions. Currently, private firms conduct over half of NHS-funded ADHD assessments and a third of autism assessments, often due to long NHS waiting lists, exacerbated by schemes like England's "Right to Choose."

Professor Frith and Dr. Fisher highlighted that private providers often have an incentive to increase demand through marketing and to conduct assessments as cheaply as possible, which could lead to the employment of less qualified staff and reduced assessment times. Dr. Fisher recounted her experience at a private clinic where the chief executive lacked healthcare training and felt pressure to complete online assessments quickly, describing it as a "profitable enterprise" with altered incentives.

Diagnoses for ADHD and autism rely on assessing difficulties, developmental history, and functional impairment, as there are no definitive biological markers, leaving room for interpretation. Experts liken the diagnostic surge to a cycle: rising demand, fueled by perceived social importance, leads to more providers, which in turn results in more diagnoses and encourages further self-identification.

"One of the ways in which private clinics can increase demand is by expanding the number of people who think that an ADHD diagnosis might provide the answer to their problems," Dr. Fisher stated. "Many of us now see these types of adverts on a daily basis and they are all over social media."

The number of UK companies incorporating "ADHD" into their names has grown significantly, from two in 2015 to 120 by 2025, with an additional 79 by September 2026. While not wishing to deny help to those in distress, Frith and Fisher emphasized that the assessment system is not being used as intended.

In response to these concerns, Health Secretary Yvette Cooper has pledged to strengthen mental health services, stating that all diagnostic assessments for ADHD and autism will become CQC-regulated to ensure quality and prevent overcharging of the NHS by private providers.