Clinical expertise

Dr Julius Cairn is a respiratory physician who covers all aspects of respiratory medicine. As well as having a clinic at Harefield Hospital, he also works as a consultant respiratory and general physician at West Hertfordshire Hospitals NHS Trust.

He is experienced in treating:

He provides a fibre-optic bronchoscopy service and is a member of the lung cancer multidisciplinary panel at Harefield Hospital.


Dr Julius Cairn is an honorary consultant in respiratory medicine at who treats NHS and private patients at Harefield Hospital.

He completed undergraduate training at The Medical College at The London Hospital (now part of Queen Mary, University of London) and postgraduate training in the north-west Thames region. This included postgraduate training at Royal Brompton, Harefield and Charing Cross hospitals.

He has completed research at Harefield and Royal Brompton hospitals on bronchiolitis obliterans syndrome following lung transplantation.


Dr Julius Cairn is involved with educating others about interstitial lung disease, the management of pneumonia and oxygen prescribing.

He is involved with clinical governance, as he is a member of West Hertfordshire Hospitals NHS Trust’s antibiotics and medical gas committees.