Advice

If you cannot identify the mechanism of injury, or if your knee pain started after a minor injury, you can monitor your symptoms for 48 hours before seeking medical assistance. Seek medical attention quickly if your pain is caused by a significant injury or you experience:

1. Rapid swelling within the first 3-4 hours after injury 
2. Inability to bear weight on the involved knee
3. Locking. If you are unable to move the knee from a certain position due to it feeling stuck
4. Hearing or feeling a pop at the time of injury
5. Experiencing instability or episodes of giving way 
6. Visual deformity following injury
7. Intense, uncontrollable pain