Medical Defence Union

The Medical Defence Union (MDU) is the United Kingdom's leading medical defense organization, operating as a non-profit mutual society owned by its healthcare professional members. Established in 1885, the organization provides professional indemnity, legal advice, and expert representation for doctors, dentists, and other healthcare practitioners. Its services cover clinical negligence claims, GMC and GDC investigations, inquests, and criminal investigations arising from professional practice. In addition to legal defense, the MDU offers 24-hour advisory services and risk management training to help members navigate ethical and professional challenges. It remains a cornerstone of the UK healthcare system, supporting the professional integrity and legal security of the medical workforce.