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Symptom
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Symptom

 

A symptom is a sensation or change in health function experienced by a patient. It is a subjective report, as opposed to a sign, which is objective evidence of the presence of a disease or disorder.

Examples of symptoms are fatigue/tiredness, pain, or nausea. In contrast, elevated blood pressure, or abnormal appearance of the retina, are signs of disease.

See also: List of medical symptoms.