2. One of many movements of the body or arms and legs that are used to express something and represent a language. An example would be when someone uses to hands to grab their throat, which is a sign indicating that the person is choking.
3. In psychology, a sign is something that represents a specific idea to the person who perceives it.
4. A symbol or abbreviation.
Sign comes from the Latin word “signum” meaning “mark.”
Sign has the following meanings in the field of medicine:
1. A clear evidence of disease that can be measured or observed. Examples of common signs include fever, rash, sweating, vomiting, tremor (shaking), and swelling. Unlike signs, symptoms are an indication of a disease or a change in condition that are not observed by others, such as feeling pain. Signs can indicate the presence of symptoms, such as when scratching (a sign) indicates the presence of an itching sensation (a symptom).
Syndromes are a group of signs and symptoms that occur together and have a common cause, representing a certain disease or inherited abnormality.
Signs can be observed by healthcare providers during physical examination or behavioral observations but all healthcare providers should be aware that certain signs (e.g., shaking, stuttering) can be exaggerated by patients in certain situations.