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Variant of etiology.


(1) As commonly used in medical practice, cause.
(2) A branch of knowledge concerned with the causes of particular phenomena; specifically, a branch of medical science concerned with the causes and origins of diseases. This definition is rarely used in the working parlance.


1. The science and study of the causes of disease and their mode of operation.
Compare: pathogenesis
2. The science of causes, causality; in common usage, cause.
Synonym(s): aetiology.
[G. aitia, cause, + logos, treatise, discourse]


The cause of a disease. This may involve many factors, including susceptibility arising from a hereditary tendency or genetic cause, environmental factors, previous related illness, unwise or unhealthy lifestyle, exposure to infective agents, and so on. The term is derived from the Greek aitia , a cause and logos , a discourse. Compare PATHOGENESIS.




the study of causes (usually of a disease).


cause of disease


The cause or origin of a disease. Note: also spelt etiology. See diagnosis; epidemiology.


Patient discussion about aetiology

Q. how is depression caused by having cancer treated? I mean not only the patient, also the family members who tend to get depressed by the situation. how can you treat thi skind of depression?

A. thanks guys, you are great. Nice to have such a community here.

Q. What causes fibromyalgia? Is fibromyalgia a deadly disease?

A. The causes of fibromyalgia are not known. But there are many theories such as abnormalities in brain chemicals, infections, trauma, genetics and hormonal changes. Factors such as poor sleep, fatigue, overexertion and anxiety, may aggravate the symptoms. Fibromyalgia is not a progressive or life-threatening condition, but it affects quality of life. Fibromyalgia is only a disorder of muscles and not a disease.

Q. Is that true that mouth sores are caused by lack of vitamins? I’ve been having white mouth sores in the past 6 months or so. Could that mean I have to take vitamin supplements?

A. yup ... autoimmune reactions means your immune system is not working well
it's not working well because it lacks the nutrient and vitamins it needs to function properly
- take lots of vitamin c to boost your immune system
- organic multivitamins
- organic juices high in anti oxidants
- and most important .. omega 3-6-9

More discussions about aetiology
References in periodicals archive ?
This study was planned to determine the frequency of common etiologies of erythroderma in patients visiting a tertiary care hospital in Karachi.
2/100,000 population annually), encephalitis is of public health importance because rapid response to cases may prevent additional transmitted cases of the underlying etiologies.
Clinical presentation may be only with non specific shortness of breath however, unexplained dyspnea with or without accompanying pulmonary artery ecstasies at the routine chest roentgenogram are needed to be evaluated for the underlying etiologies causing pulmonary hypertension.
Etiologies and syndromes were determined based on medical records and reliable informants.
In this review we examine the human evidence for environmental etiologies for some diagnosed neurodegenerative diseases.
Biosan Medical's Ventritek 105(R) is a novel, patented surgical device and method for treatment of stroke/subarachnoid and intraventricular and intracerebral hemorrhages of different etiologies.
Our study results exhibited that underlying etiologies, co-morbidities and duration of ventilation stay affect significantly on the outcome of the patients on ventilation in coronary care unit.
Reducing delays in sample collection, epidemiologic investigations, and consultation with the URDO working group might increase the ability to identify etiologies and lead to more rapid control of these unexplained respiratory disease outbreaks.
Excluded were 29 women with PAH associated with congenital heart disease, and 15 with PAH of other etiologies.
Cervicofacial subcutaneous emphysema has only a few etiologies.
In recognition of the public health importance of understanding autism and the lack of reliable data that bear on potential environmental etiologies, the NIEHS has taken steps to support research in this area.
Imaging is helpful in diagnosing structural etiologies but is most often nonspecific in terms of identifying a cause.