Skip to main content
An official website of the United States government
Español

symptom

(SIMP-tum)
Something that a person feels or experiences that may indicate that they have a disease or condition. Symptoms can only be reported by the person experiencing them. They cannot be observed by a health care provider or other person and do not show up on medical tests. Some examples of symptoms are pain, nausea, fatigue, and anxiety.
Search NCI's Dictionary of Cancer Terms