Asymptomatic means showing or experiencing no noticeable symptoms of a disease or condition.
A person can have an infection or other medical condition without experiencing symptoms. Whether someone is asymptomatic can depend on the stage of a disease, the individual’s response to it, and how symptoms are defined or assessed.
Being asymptomatic does not necessarily mean that a condition is harmless or that no biological changes are occurring.
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Asymptomatic does not mean disease-free. A person may have an infection without feeling ill or noticing symptoms.
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Pre-symptomatic: A pre-symptomatic person has a condition but has not yet developed symptoms and may develop them later; an asymptomatic person does not develop noticeable symptoms.
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