Psychological distress is common in people with cancer, with 40% of all UK patients experiencing anxiety or depressionduring their cancer journey.scores against the diagnostic cut-off score for ‘caseness’. (See Validating the Distress Thermometer as a tool to screen for psychological distress in the UK.) The Distress Thermometer, a single item scale with a symptom checklist, potentially fits the criteria. Initially developed by the National Comprehensive Cancer Network (NCCN) and validated in the USA, Australia, Japan and southern Europe, but not the UK.