A disease is a particular abnormal condition that adversely affects the structure or function of all or part of an organism … See more

Diseases may be classified by cause, pathogenesis (mechanism by which the disease is caused), or by symptoms. Alternatively, diseases may be classified according to the organ system involved, though this … See more

Diseases can be caused by any number of factors and may be acquired or congenital. Microorganisms, genetics, the environment or a combination of these can contribute to a diseased state.
Only some … See more

Many diseases and disorders can be prevented through a variety of means. These include sanitation, proper nutrition, adequate exercise, vaccinations and other self-care and public health measures, such as obligatory … See more

Medical therapies or treatments are efforts to cure or improve a disease or other health problems. In the medical field, therapy is synonymous with the word treatment. Among psychologists, the term may refer specifically to … See more

Epidemiology is the study of the factors that cause or encourage diseases. Some diseases are more common in certain geographic areas, among people with certain genetic or socioeconomic characterist… See more

How a society responds to diseases is the subject of medical sociology.
A condition may be considered a disease in some cultures or eras but not in others. For example, obesity can represent wealth and abundance… See more