“There is an ongoing debate about what kind of lesion is the underlying lesion of a bunion, whether it is a first metatarsal inversion or a bunion. Each of the two is seen as the cause of the other” – Campbell Surgical. The causes of bunions are very complex and there is no unified conclusion yet. There are various common surgical procedures for bunions and foreign experts are very careful in choosing the procedure, if the procedure is not chosen properly, it will either be incomplete or bring about unnecessary damage. Professor Chang Li, from the perspective of functional anatomy and after long-term research and practice of a large number of cases, believes that muscle power imbalance is the core cause of bunion formation, and established the theory of muscle imbalance, and applied this theory to the treatment plan. The features of this treatment protocol are: no destruction of joints, no damage to the flexion and extension dynamics of the toes, which are soft tissue orthopedic procedures; complete shape correction, no recurrence, and increasingly normal skeletal morphology under the stimulation of benign dynamics; and a wide range of applications, including both milder and more severe lesions. A variety of other procedures are available for more complex lesions, with precise selection of procedures and prohibition of abusive procedures. In the surgical operation method, we adopt cosmetic surgery method to make the damage less, scar less, appearance more beautiful and function more perfect, so that the surgery has the value of cosmetic surgery while relieving the patient’s pain. In the case of light functional impairment, the surgery can be performed entirely for cosmetic purposes, without bringing negative functional effects.