Paediatric Ketamine Bladder Case Report: A Burgeoning Problem in the Paediatric Population.

Ketamine misuse is an increasing public health concern among adolescents in the United Kingdom, with initiation reported as early as 14 years of age and a rapidly rising demand for drug and alcohol support services. Chronic ketamine misuse is associated with significant urological sequelae, including ketamine-induced uropathy, a condition increasingly encountered within paediatric and adolescent populations. Despite this trend, there remains a lack of unified paediatric-specific management guidelines. We present the case of a 15-year-old boy who was referred urgently with abdominal pain and haematuria. Imaging revealed a thick-walled, irregular bladder with vascular soft tissue plaques, alongside a significantly raised albumin-creatinine ratio. Further assessment identified a history of heavy recreational ketamine use (up to 2 g/day) commencing at age 14. Following engagement with community drug and alcohol support services, the patient significantly reduced ketamine use, with subsequent improvement in symptoms, highlighting the potential reversibility of disease with early intervention and abstinence. This case underscores the emerging burden of ketamine-induced uropathy in paediatric urology and the need for a structured, age-appropriate management approach. Drawing on existing adult consensus guidance, we propose a tailored paediatric framework incorporating early noninvasive investigations, stepwise escalation of treatment, multidisciplinary involvement and close collaboration with youth-focused substance misuse services. Increased reporting and research into paediatric ketamine uropathy are essential to clarify disease trajectory, inform clinical guidelines and support public health strategies aimed at reducing long-term urological morbidity in young people.