+A **medical sign** is an objective, observable indicator of a [Disease](/wiki/disease) or [Medical Condition](/wiki/medical_condition), detectable by an observer. Unlike a [Symptom](/wiki/symptom), which is felt and reported by the patient, a sign can be seen, heard, felt, or measured by a clinician, offering crucial diagnostic insights.
+## See also
+- [Diagnosis](/wiki/diagnosis)
+- [Physical Exam](/wiki/physical_exam)
+- [Symptom](/wiki/symptom)
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