Recurrence refers to the return of a disease or condition after a period of improvement or remission. It is commonly used in the context of cancer but can apply to many chronic or relapsing conditions, such as infections, autoimmune diseases, or mental health disorders. Recurrence may occur in the same location as the original disease (local recurrence) or in different areas of the body (distant or metastatic recurrence).

Monitoring for recurrence is an important part of long-term care, and management strategies may include additional treatment, lifestyle adjustments, or regular follow-up evaluations.