What is the difference between relapse and recurrence?

Answer 1

Recurrence of a disease is actually the activation of an already there but not harmful disease( e.g. cystitis)for at least 3 TIMES A YEAR due to certain causes

Relapse means the reappearance of a disease that has vanished completely( e.g. cancer relapse) after a person has been treated

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Answer 2

Relapse refers to the return of symptoms after a period of improvement, often due to not following a treatment plan. Recurrence, on the other hand, refers to the return of the original condition or disease after a period of remission or being symptom-free.