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The science of symptoms.
In common usage, the symptoms of disease taken together as a whole.



(also called semeiotics), the study of the symptoms of diseases. Symptomatology may be general or specific.

General symptomatology studies the relationship of a given disease to the patient’s general characteristics— sex, age, nationality, occupation, heredity, previous illnesses, and constitution. It also studies such indications of his condition as posture, facial expression, fever, and changes in consciousness. The patient’s general characteristics play an important role in diagnosis. For example, hemophilia rarely affects women, measles is predominantly a disease of childhood, sickle cell anemia is widespread in Equatorial Africa but is not found among the indigenous peoples of America and Australia, there exists a special group of occupational diseases, and parkinsonism (Parkinson’s disease) may be diagnosed by observing a patient’s appearance and gait. General symptomatology also investigates changes in the function and morphology of organs as well as differing results of laboratory tests; examples are the diagnostic significance of enlargement of the liver or characteristics of the urine and feces in jaundice.

Specific symptomatology studies the diagnostic significance and initial manifestations of the symptoms of individual diseases. It also studies causes of a possible absence of symptoms, as well as combinations of symptoms. Symptomatology is an important component of diagnostics.


Hegglin, R. Differentsial’naia diagnostika vnutrennikh boleznei. Moscow, 1965. (Translated from German.)
Lazovskii, I. R. Klinicheskie simptomy i sindromy. Riga, 1971.
References in periodicals archive ?
A limitation to this study is that a self-report measure was used to assess depressive symptomology.
Current views in methodology shift between the reduction of current symptomology and impairment, improved resilience and strength, as well as the prevention of adverse outcomes.
However, findings of present study were consistent with symptomology mentioned in standard literature.
This finding could indicate that the experience of the trauma did not lead to PTSD symptomology, or that PTSD is underdiagnosed in this population.
Previous studies have suggested considering anticipatory fatigue and a possible mediating role of mood symptomology in fatigue (Fuentes-Marquez, Senin-Calderon, Rodriguez-Testal, & Carrasco, 2015).
The analysis predicting symptomology entered the predictors of emotional forgiveness, unforgiveness (TRIM), and self-forgiveness.
Although there is little information about this entity or about the role that hormones play during the menstrual cycle, it seems probable that hormones are responsible for the symptomology (including demeanor and behavior) that this particular patient presented.
Sinonasal involvement may range from non-specific symptoms such as nasal obstruction, discharge, and crusting to more classic WG symptomology such as septal perforation and saddle nose deformity.
The currently used diagnostic systems are quite comprehensive, but they still primarily depend on symptomology.
Studies have proposed reclassifying them according to the duct's orifice configuration with the urethra and their symptomology into 2 groups: (1) closed or obstructive; (2) open or nonobstructive [6-8].
Introduction: Research suggests an association between partner support and eating disorder (ED) symptomology in coupled women.
Using the Preacher and Hayes method, the association between past-year discrimination (exposure) and PTSD symptomology (outcome) was tested in a bootstrapped, fully adjusted model.