The Dark Side of Healthcare draws uncomfortable lessons from over 300 case studies of events that occurred in the healthcare sector. Health services have many skilled and dedicated professionals but there is a dark side that cannot be ignored. The unthinkable has happened and might have been prevented. The case studies from many countries include serial killers with a health background, drugs and medical devices that proved to be dangerous, negligent and poor clinical practices, as well as incompetent and weak management that led to failing hospitals and harm to patients. There are also corruption cases, accidents at work, and cases involving the sexual exploitation of children. Politicians' early responses to COVID-19 and the subsequent missteps are also scrutinised. Many of the errors and omissions that led to patient harm have been repeated. This book is not an attack on health services or health professionals. Instead, it is a search for ways of making health delivery safer for patients and staff who deliver care often in challenging circumstances. Its focus is learning rather than blame.