RT Journal Article SR Electronic T1 Too much medicine: not enough trust? A response JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 746 OP 747 DO 10.1136/medethics-2018-105257 VO 45 IS 11 A1 Joshua Parker YR 2019 UL http://jme.bmj.com/content/45/11/746.abstract AB In their paper ’Too much medicine: not enough trust?' Zoë Fritz and Richard Holton explore the connection between trust and overtreatment and overinvestigation. Whilst their paper is insightful, here I argue that much more could be made of a doctor’s (mis)trust and how this exacerbates overtreatment and overinvestigation. By taking Fritz and Holton’s view of trust as having ‘our best interests at heart’ as my starting point, I argue that doctor’s do not always trust that patients or the system has their interests at heart and so use overtreatment and overinvestigation to protect themselves. I also point to the tensions created by a lack of trust on the doctor’s part as a focal point for much needed sustained ethical analysis.