Persistent Pain 

Continuous or severe knee pain may indicate ligament, cartilage, or joint damage. 

Swelling Around the Knee 

Sudden or ongoing swelling can signal inflammation or internal injury. 

Difficulty Walking 

Trouble bearing weight or walking normally may suggest a serious knee problem. 

Knee Instability 

Feeling like the knee is giving way can indicate ligament injury or weakness. 

Limited Range of Motion 

Inability to fully bend or straighten the knee may point to joint damage. 

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