Re-injury refers to the recurrence of an injury after a person has previously healed. This can happen when an individual returns to physical activity too soon or does not follow proper rehabilitation protocols. Factors such as inadequate strength, flexibility, or conditioning can increase the risk of re-injury. Preventing re-injury often involves a gradual return to activity, strengthening the affected area, and addressing any underlying issues. Techniques like physical therapy and proper warm-up exercises can help reduce the likelihood of re-injury, ensuring that the body is adequately prepared for the demands of the activity.