In keeping with the informed consent given by its participants, UK Biobank does not generally provide feedback to individual participants about information derived from analyses of data or samples made following their assessment visits. Participants receive limited individual feedback in two areas. First, they receive a summary of standard measures (e.g., blood pressure, body mass index) at the end of each assessment visit and are encouraged to seek medical advice for results outside the normal range. Second, potentially serious incidental findings (i.e., those likely to threaten life span or have a major impact on quality of life) observed by study staff during these assessments (e.g., possible melanoma on exposed areas of skin) are brought to the attention of participants with encouragement to contact a relevant health professional. Similar feedback is occurring in the imaging substudy, with participants and their general practitioners informed of potentially serious incidental findings noticed by radiographers and confirmed by formal radiologist review. In addition, the overall findings and implications of results that derive from research using the UK Biobank resource are made available to researchers, participants, and the wider community so that they can influence public health strategies.