If you have been dealing with peroneal nerve entrapment at the fibular head — the numbness creeping down the outer shin, the weakness that makes lifting your foot feel uncertain, or the nagging discomfort after sitting with your legs crossed — you already know that most explanations you find online stop at "avoid compression and do some physical therapy." That is not wrong, but it is incomplete.

If you are a runner, cyclist, or military athlete who feels a building pressure, burning, or numbness in your lower legs during exercise — symptoms that vanish within minutes of stopping and return every time you push past a certain threshold — you are already familiar with how difficult this experience is to explain.