The Diseases Database is a database on a free website that gives information about the relationships between medical conditions, symptoms, and medications. The database is run by Medical Object Oriented Software Enterprises Ltd, a small company based in London, UK.
The site's stated aim is "education, background reading and general interest" with an intended audience "physicians, other clinical healthcare workers and students of these professions". The editor of the site is stated as Malcolm H Duncan, a UK qualified medical doctor.
The Diseases Database is based around a collection of concepts related to human medicine. These concepts include diseases, drugs, symptoms, physical signs and abnormal laboratory results. These are referred to as 'items'. There are around 8,000 items within the database.