Imbalance of dynamic equilibrium is the root cause of abnormal bony growths.Although the inner body stresses are complicate, three main states may be summarized as: traction, pressure and inflation.

• 人体内应力平衡失调是骨质增生（骨刺）的根本范围，人体内力学状态错综复杂，但归纳起来有三种状态：拉应力、压应力、涨应力。