Why do I feel a grinding sensation right behind my kneecap when walking normally?

Why do I feel a grinding sensation right behind my kneecap when walking normally?

1. Introduction A persistent grinding sensation located directly behind the kneecap during normal walking is typically the clinical hallmark of articular cartilage degradation, most frequently identified as chondromalacia patellae. This tactile sensation, clinically termed pathological crepitus, occurs when the normally smooth, frictionless cartilage on the undersurface of the patella becomes softened, frayed, or irregular. As … Read more