Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, what evidence his Department has received on the potential over-diagnosis of mental health conditions and neurodivergence.

The most recent evidence about the prevalence of mental health conditions and neurodiversity comes from the Adult Psychiatric Morbidity Survey 2023/24, which provides data on the prevalence of both treated and untreated mental health disorders and neurodevelopmental conditions in the English adult population.

The survey found that common mental health conditions among adults, especially young adults, have become more widespread over time. There has also been a noticeable increase in the number of adults screening positive for attention deficit hyperactivity disorder (ADHD). In contrast, the prevalence of autism in adults has remained steady over the years.

We are deeply concerned that many adults, young people, and children with mental health conditions, ADHD, and autism have been let down by services and are not receiving timely or appropriate support and treatment. That is why we have launched an independent review into the prevalence and support for mental health conditions, ADHD, and autism.

The review will examine the similarities and differences between mental health conditions, ADHD, and autism, focusing on prevalence, prevention, treatment, and current challenges in clinical services. It will assess how diagnosis, medicalisation, and treatment impact individual outcomes, including the risks and benefits of medicalisation, and will identify approaches to provide varied support models and pathways, both within and beyond the National Health Service, that promote prevention and early intervention alongside clinical care.